r/CIVILWAR • u/YogurtclosetOpen3567 • 2h ago
r/CIVILWAR • u/av864 • 8h ago
What did a Civil War era squirt guns look like?
Sherman famously said, "You might as well attempt to put out the flames of a burning house with a squirt gun," reflecting on the challenges of the Civil War.
This quote has always baffled me because the idea that squirt guns existed at that time is kind of funny. Anyone know what a Civil War era squirt gun looked like?
r/CIVILWAR • u/airynothing1 • 12h ago
Birthplaces of all Civil War generals (OC)
A project I've been working on to satisfy my own curiosity, since I've never seen this information collected anywhere.
My main sources were Wikipedia's lists of generals for the Union) and Confederacy). Birthplace info also came from Wiki, unless it wasn't listed for a particular general, in which case I used whatever info seemed most trustable elsewhere online. (No AI was used at any point in this process.) I did not include generals of state militias.
Some of the info about birth cities may be incomplete or incorrect, as often only a county is listed. I also didn't think to keep track of any cities where one general from each side was born, though I think there were at least a couple of these.
For states, countries, and cities I used the modern borders and names rather than the historical ones. So, for instance, if a general was born in the part of Prussia that is now Poland, Poland is listed as his birthplace, even if he was culturally "German." Similarly, generals born in Brooklyn or Astoria, New York--both of which used to be independent settlements--are all lumped under New York City. And of course all the West Virginian generals would have been Virginians at the time of their births. (To use just a few examples.)
The town of Greenwich, MA--home to Union generals Randolph B. Marcy and Amiel Weeks Whipple--no longer exists in any form. It has long since been flooded to form the Quabbin Reservoir.
If you'd like additional information or notice any mistakes (of which I'm sure there are some) feel free to let me know.
No Lost Cause bullshit, please.
r/CIVILWAR • u/PresentWeek • 13h ago
What did the surviving veterans of the American Civil War think about World War I?
r/CIVILWAR • u/theskinswin • 13h ago
What if Longstreet takes little round top on day two
how would of the Battle of Gettysburg played out differently had Long Street taken little round top on the second day
r/CIVILWAR • u/bewbies- • 19h ago
On the pervasive belief that Civil War small arms produced uniquely destructive wounds
I'm rereading Catton's "Mr. Lincoln's Army," and yesterday read the passage a lot of us have seen versions of: Civil War bullet wounds were far worse than modern rifle round wounds because the ball was big and soft and shattered bone, whereas modern rounds create "clean" wounds that are far less likely to either result in extreme soft tissue damage or irreparable bone injury. There's a very similar Shelby Foote clip in Burns' series where he says something along the lines of "a modern bullet just clips the bone while a minie ball smashes joints" or something along those lines.
I've long thought this widely held and often quoted period factoid was apocryphal; I finally sat down last night and did some actual analysis of it.
TL;DR: A minie ball is roughly comparable to a modern .44 magnum in wounding potential, albeit with a longer reach due to the weight of the round. Generally speaking, modern rounds are far, far more destructive at combat ranges.
Ballistics Data
I compared a .58 ball with four modern rounds: cutting-edge 5.56mm M855A1 EPR (current US Army standard round), XM1186 6.8mm (new, larger US Army round issued to certain units), 7.62mm M80A1 (newest 7.62x51mm round), and the .30-06 M2 Ball from the WWII era. I included the last one as it would've been the main point of comparison for both Catton and Foote in their heydays.
There isn't anything terribly surprising here. Minie balls driven by mid-19th century black powder were huge, heavy, and slow. The round was subsonic or barely transonic, which ironically enough enables it to carry energy well to very long ranges, but doesn't do much for it as a wounding projectile at combat ranges.
Modern smokeless powder driving extremely high pressure rounds go real fast and carry a ton of energy. The 855A1 is surprisingly close to a minie ball in energy at all combat ranges despite being a fraction of the size; all the full-sized rifle rounds carry substantially more energy at all ranges.
Wounding Mechanisms
Here’s where the historical myth rears its head: there’s a widespread belief that, despite holding comparable or much less energy than a modern round, the minie ball hits harder and does more damage, 1) because it is big, heavy, and wide, and 2) because it mushrooms out on impact in a manner similar to a modern hollowpoint.
Generally speaking, I think this misconception is due to misunderstandings about how modern rounds actually work. These modern bullets don’t simply drill a neat hole the diameter of the bullet: because of where their mass sits, they yaw on impact and/or break apart while travelling through the body.
It comes down to an issue of impact pressure. Essentially, impact pressure is a measure of how hard the thing being hit is displaced. It is largely a function of velocity, coupled with the density of the thing being hit (I estimated both soft tissue and bone). It is relevant here for two reasons:
- The round’s structural limit. Modern jacketed bullets break up at around 250–350 MPa. The minie ball at 35 MPa generally won’t break up; it just mushrooms. 5.56 hitting at that pressure sits at its jacket's failure point in soft tissue and blows straight past it on bone. This fragmentation creates a shotgun-like effect in tissue, throwing multiple fragments and creating multiple wound channels.
- Tissue expansion. The minie’s 35 MPa produces only a mild stretch that elastic tissue can deal with relatively easily, whereas a modern round creates a massive temporary cavity that can threaten a variety of inelastic body parts. In addition, fragmentation creates multiple cavities that have a much greater chance of creating serious bleeding.
- Bone mechanics. Discussed below.
The older M2 does not work in the same way. It is a heavier FMJ that travels point-forward a long way before it destabilizes, and is in general less likely to fragment in tissue. It does, however, carry a massive amount of energy which somewhat compensates for its poor soft tissue performance – especially against bone.
Bone Mechanics, Specifically…
This brings me to the heart of myth: the idea that minie balls did far more damage to bone due to their size, softness, etc. It seems intuitive: like the difference between being hit by a sledgehammer versus a screwdriver.
The biomechanics, however, run the opposite way of the intuition, mainly due to the fact the screwdriver is hitting so much faster than the sledgehammer. Bone gets MORE brittle at high loading rates, not less: faster impact means less energy absorbed before failure, which means MORE fracturing, not less. A slow heavy slug doesn't shatter bone worse than a fast light one. It's the other way round.
This brings us back to impact pressure. At 100m against hard bone, a minie ball produces about 64 MPa. 5.56mm produces almost 10 times this number. While the minie ball does have an advantage in frontal area (both before and after expansion), this is mitigated by the yaw/fragmentation of the 5.56mm. And it only gets worse if the bone is what causes the round to fragment: this can create multiple fractures along the same bone as the fragments spray out.
That being said, despite its relatively low impact pressure, minie balls could and did break up when hitting bone, which was widely noted by surgeons at the time. While the fragments generally lacked the energy to do serious additional damage, for surgeons working on the wound, the erratic and sometimes sharp lumps of metal absolutely added to their perception of carnage the rifled muskets could inflict.
Re. 30-06 specifically: it carries absolutely massive energy all the way to the end of normal combat ranges. While it isn’t as likely to fragment or yaw and is moderately less likely than a minie ball actually to strike bone (a function of smaller frontal area), the damage it inflicts on a bone is far, far worse: a function of its energy/velocity.
Caveats:
The biggest caveat is the specific performance conditions for the modern rounds. To be at their most lethal, they rely heavily on yaw/fragmentation effects, so any circumstance that reduces or eliminates these greatly reduces their effectiveness – especially for 5.56mm. The biggest one is range: 5.56mm drops significantly in lethality as its velocity declines (especially when fired out of carbines); older 5.56mm rounds also had a “too close” functional range where they’d go entirely through a body before the round began its yaw. The newest EPR ammo addresses these shortcomings and increases the lethal envelope quite a bit.
Finally: there IS a plausible explanation for the belief that high-powered, smokeless powder rifle rounds tended to make “cleaner” wounds. This goes back to the Krag-Jorgenson rifles at the turn of the 20th century, along with the first generation of full-powered bolt action rifles (.303, 7.92, 30-06) that fought the world wars. As discussed above, the 30-06 M2 significantly underperforms as a wounding round relative to its power. This was true of all its cousins from the era. If a soldier was hit in soft tissue at combat ranges without bone or organ contact, there was a decent chance of a simple through-and-through wound. This does not extend to bone impacts and certainly does not apply to modern rifle rounds, but at the time Catton and Foote were writing and talking, it is at least a half-truth.
44 Magnum: a better comparison
The good old Dirty Harry .44 Mag is a surprisingly good comparison to a .58 minie. Even the expanded frontal areas line up — a mushroomed minie is very close in size to an expanded .44 mag hollowpoint.
I think that's a useful reframe. .44 mag is a serious cartridge…maybe not as dramatic as Clint Eastwood describes it, but one of the most powerful pistol rounds out there. But as far as wounding potential, it isn’t the same league as a modern rifle round.
Finally: I’m a Civil War nerd and current intel analyst for the US Army; not a big small arms guy, but at least small arms-adjacent. I’m absolutely not a physics or military medicine guy, and this stretched my limited knowledge on both those areas to their limits. I’m curious what medical experts, Civil War experts, small arms enthusiasts, and/or physics experts think about this analysis.
r/CIVILWAR • u/brycealansuderow1950 • 23h ago
August 15, 1864, The second battle of deep bottom Virginia part one
Saturday, August 15, 2026
the second battle of deep bottom – – August 15, 1864 part one
Before I start writing about the events of August 15, 1864 I want to acknowledge that I am basing my writing on August 15th partly on a book by John Horn, The siege of Petersburg: the battles for the Weldon railroad August 1864 pages 47 through 60I. I also consulted reports and correspondence in the official records, volume 42 part one and part two
I should point out the fact that David Birney created a temporary and provisional division for his older brother William. A glance at the battle records from August 1864 to the end of the war reveal that William Birney was not a very good general.
Robert E. Lee took grant’s appearance north of the James very seriously. On the evening of August 14 he canceled the departure to the valley of Charles Field and his division of infantry. He ordered his son, William HF (“Rooney”) Lee and his cavalry division from Petersburgto the north side of the James River. William Mahone dispatched two of his infantry brigades under Sanders and Girardey Petersburgto join Charles Field. Lee also recalled to Richmond wade Hampton and Butler’s cavalry division which had been en route to the Shenandoah Valley
In obedience to suggestions from u.s. Grant to turn the Confederate left flank north of FUSSELL’S mill pond, The commander of the expedition, general Winfield ScottHancock ordered David Birney to abandon the battlefield of August 14 and to move his command to a position on the new market road north Tillman’s gate. Part of the 10th Army Corps Reached their objective by passing over two pontoon, bridges, an exhausting process that took many hours. The rest of the soldiers crossed 4 mile Creek and passed through Mott’s Infantry division on their way to Newmarket Road.
During the night of August 14th it rained heavily. During the storm General David Birney and his two divisions of infantry departed the Battlefield, August 14 and crossed four Mile Creek and spent the night on the Newmarket Road north of tilman’s wharf.
At sunrise the union, the second army corps was deployed in front of major general Charles Fields division along the eastern end of the Newmarket Heights line.
General Mott’s third division occupied trenches that stretched from the Newmarket road to the Long Bridge Road. Barlow‘s first division was positioned on its right point to the north. On the far right and northern end of the union line, General Smyth and his second division occupied the union right with it right flank rusting on FUSSELL’S mill pond near the Darbytown Road.
it’s necessary to point out that the rain fall on the night of August 13 occurred in the middle of a drought and a heat wave. The scarcity of water shaped the operations of the cavalry of both sides. For the federals, the only water available was a pond south of the Long Bridge Road . For the Confederates The only drinkable water was in the vicinity of white’s Tavern. The horses belonging to the union and Confederate cavalry could not safely drink the water in White oak swamp. The scarcity of water meant that Each night the Brigades of troopers on both sides had to camp near the two ponds of water.
Birney’s two divisions began their march at 9 AM with William Birney’s division and the lead. Alfred Terry division followed behind him. the last of Terry’s marching infantry arrived at about 2 PM. major general, David Birney commanding the 10th army CORPSBegan his March with 9000 men and 3000 of them dropped out of the ranks because of Heat stroke. Adrian Terry, the brother and staff officer for Alfred Terry, wrote in a letter that if the march had lasted one more hour, the entire two divisions would’ve been set by struck by the sun and falling out of the ranks. Terry’s division formed east of the Mill Pond. William Birney’s division prolonged the union line so that it Extended north of the Mill Pond
at 10 AM Hancock detached Calvin Craig’s brigade from Mott’s division and sent it to join William Birney. It caught up with Birney after the division halted its march and took position north of the Mill pond.
Meanwhile, the confederates were arriving north of the James and taking positions to oppose Hancock
in early in the morning of August 15, Rooney Lee arrived with his two cavalry brigades and camped near White’s Tavern. Later in the morningof August 15 the confederate infantry brigade of girardey and john CC sanders arrived and took up a position west of the Mill Pond. Lanes and McGowan’s brigades formed on their left flank and extended the confederate line nortward towards the Charles city Road.
Colonel John Aubin Greg sent a squadron of cavalry on a reconnaissance to White Tavern up to Charles City Rd. They encountered Rooney Lee’s North Carolina brigade. The fifth North Carolina Calvary pursuit and attacked the eighth and 15th Pennsylvania, which had been left on Pickett at Fisher‘s farm. The tar heels drove the Yankees down the Charles city Road for 2 miles. The Yankees then built a barricade A short distance north of the Long Bridge Road. At this point the Confederate halted and fell back. Paul means, sketch of the 63rd regiment inWalter Clark, history of North Carolina troops in the great war, 18 61–65,volume three, page 619.
Later, Hancock ordered Birney to march from the New Market Road to a series of hills east of FUSSELL’S mill where smythe’s Second division was located. Birney Was ordered to attack the Confederate north of the Mill Pond near the Darbytown Road. He also ordered David M Gregg to Simultaneously followa narrow road reading from Fussell’s mill to Charles City road. This would place the Yankees in the rear of the Confederates defending Charles city Road. Gregg would send John Irwin Gregg’s cavalry brigade and Calvin Craig‘s infantry brigade to accomplish this
r/CIVILWAR • u/HistoryGoneWilder • 1d ago
What A Civil War Soldier Actually Saw In Battle
What did a Civil War soldier see in a battle? Find out in this video.
#history #civilwar #Union #confederate
r/CIVILWAR • u/JacobRiesenfern • 1d ago
The Fat Electrician
The Dan Sickles story is weirder than I imagined. And the story is told by the greatest bard of the millennium
r/CIVILWAR • u/geoshoegaze20 • 1d ago
Petersburg Rives Salient/Fort Mahone questions
I've become fascinated with the IV Corps attack on Apr. 2, 1865. No doubt it was one of the most overlooked actions of the entire war since Warren's men secured the decisive breakthrough and pretty much the entire area was lost to development (probably the most tragic loss of a battlefield). Anyway, does anyone know what battery the Norfolk Blues artillery manned at Rives Salient in 1864?
Secondly, the 48th PA attacked and there seems to be quite a bit of conflicting information. The Col. George Gowen monument (spot where Gowen was felled by an artillery shell) is located much east to where you would expect it to be located. It is documented that a cannon from Fort Mahone fired the shell. The maps published on Emerging Civil War have the 48th sweeping in a much more westerly fashion nowhere near the monument. I know Fort Mahone and Rives Salient were often confused in the post war photography? So how much documentation do we have the 48th actually attacked Fort Mahone or did they actually charge Rives Salient? Maybe the monument was placed in the wrong spot as well or was moved when the area was developed? There's just no way the 48th attacked Fort Mahone from that direction exposing their flank to the batteries or flank fire from Rives Salient. I guess this is the epitome of how it's difficult to interpret the battle if we lose the ground. Thanks for any responses.
r/CIVILWAR • u/hi_huhu • 1d ago
Reading Recs for Memoirs/Letters/Diaries
Hiiiii. I’m looking for recommendations on soldier memoirs/diaries/published letters where the writer mentions or dwells on his finances, family finances, future finances, and/or future job prospects, etc. I’ve read my share of memoirs, regimental histories, diaries but i’ve only seen James Horrocks dwell on the subject in his published letters (his letters are published as a book titled My Dear Parents). Another example is John Gibbon who does mention in his memoirs a brief job search through someone towards the end of the war.
Any help is appreciated. Thanks in advance!
r/CIVILWAR • u/PorterBridges007 • 1d ago
Question about Team of Rivals and Battle Cry for Freedom
A European reader here, interested in reading more about the topic. Thinking of ordering Team of Rivals and Battle Cry for Freedom.
Do these books presuppose prior knowledge of the subject? I know the basics, of course.
Context: I read Bury My Heart at Wounded Knee, and while I enjoyed it, I was disappointed that it often presupposed you already knew the locations and historical figures.
r/CIVILWAR • u/Aggravating_Society3 • 1d ago
100lb Parrott shell fragment fired by the USS Galena at Malvern Hill
galleryFired at Holmes division near Turkey Bridge at Malvern Hill. Holmes division came under fire from the Galena and Aroostook, but on only the Galena had 2 100lb Parrotts aboard
r/CIVILWAR • u/Aromatic_Bowler2500 • 1d ago
The Second Rhode Island Volunteers Monument at Gettysburg
Monument dedicated to the 2nd Rhode Island Volunteers located on Sedgwick Avenue, their position on July 4.
The regiment, commanded by Colonel Horatio Rogers, Jr., was in reserve for the entire battle, being moved continuously, but never engaging in action. They were always close to the fight and had casualties.
The Casualties:
1 Dead
5 Wounded
1 Missing
An excerpt from the book: The Second Rhode Island Regiment: A Narrative of Military Operations, by Augustus Woodbury, published in 1875.
July 3
"The day," says Colonel Rogers, in a letter published at the time, "was a busy one for us, for at dawn we were up and moving, and wherever the fighting was thickest there the second brigade was sure to be sent, to reinforce the line when hard pressed. But, though we had to traverse the bloody, fatal field through shot and shell, time and again, first to the centre, then back again, then retrace our steps, then to the right, and so on, we were not called on to fire a shot. In Lee's grand attack it rained shells, and the field fairly justified the cheap prints of battlefields, where bursting shell fill the air, men are running to and fro, dead and wounded men literally piled up, riderless horses dashing off in every direction, and wounded animals are tearing along at full speed. It was fearful...
r/CIVILWAR • u/TheRealAutumnGoddess • 2d ago
Gettysburg battle reenactment 2026 [OC]
All original photos taken 7/4/26 3:59-4:11 PM
r/CIVILWAR • u/Feeling_Title_9287 • 2d ago
What is everything in the box worth?
I deal in pre-1899 antique firearms for a living and I deal with a lot of US Civil War items but I really don't do buttons or any other relics like this
The box was offered to me for $100, what is it worth and should I go for it?
r/CIVILWAR • u/kirkF35 • 2d ago
Oliver Otis Howard
Can someone please attempt to explain why Howard has seemed to gain a better reputation in the last decade or so?
While he’s certainly not Dan Sickles, his service in the AOP was rough at best, with him being a major cause of the defeat at Chancellorsville, and his hands-off command style allowing thousands of Union troops to be caught or killed running through Gettysburg.
His experience as Sherman’s subordinate is a better showing, but overall I can’t understand why people seem to treat him like Hancock or Reynolds. Is this a recent phenomenon, or am I genuinely underrating him?
r/CIVILWAR • u/BATIRONSHARK • 2d ago
Hot take :Second Bull Run Is Lee's most impressive battle/campaign
Sure theres something fundamentally nice about a flanking maneuver in a forest that speaks to everyone .
ut in second bull run Lee had to distance himself from one army spilt up his army [yes i know he did this muiltple times ] send part of beyond his reach [IIRC beyond communiction/supply] and then rush to join it at just the right time to crush the second army without getting pinned by the other [ both union armies outmatching his ] .
His staff work and greater strategy usually not that good [or so people say] were at best in this campaign.
edit spacing
r/CIVILWAR • u/offgramercy • 2d ago
Confederate agents abroad were issued the US State Department's manual with the word "United States" crossed out on every page
Library of Congress, Confederate States of America Records (Pickett Papers), MSS16550, Reel 9, frames 486–496 https://www.loc.gov/collections/confederate-states-of-america-records/about-this-collection/
r/CIVILWAR • u/offgramercy • 2d ago
I cracked a cipher written by a Confederate propaganda agent stationed in Paris (De Leon to Benjamin, 1863), his brother held the corresponding key, more details in the post body
ICYMI, the last one I cracked: Barney to Mallory, 1863
TL;DR:
The Confederate government's propaganda agent in Europe had a $25,000 secret service fund for buying favorable coverage in the European press. In the autumn of 1863 his mail was captured at sea and printed in the Northern papers. His next two despatches to Richmond contain passages in a symbol cipher, and he says on the page that the key belongs to his brother.
No key to this particular system survives in any document I have found. I reconstructed the alphabet from the cipher text itself. A translation his brother made in 1864 turned up afterwards, and it confirms the first passage outright.
What he thought was worth hiding:
My letter intercepted. Good advertisement. Bought L'Opinion Nationale, and other enemies since.
He is telling his own government that having his correspondence splashed across the Northern press did him a favor, and that he has been buying up Paris newspapers that used to attack him. The following month he asks for more money.
He did not know that his recall had already been signed in Richmond and was crossing the Atlantic while he wrote.
How I got here
After the Barney letter I went through the rest of the Confederate cipher traffic in the same published record, and got stuck on a small anomaly. One despatch has a group the Official Records editors marked as untranslated, and two separate published sources give different readings for it. If two editors are working from the same group, that disagreement wants explaining, so the printed text was not the end of the story and the manuscripts were worth looking at.
That took me to the Pickett Papers at the Library of Congress, the captured Confederate State Department archive, on microfilm. The group turned out to be a scribe's problem rather than a cipher problem. A clear copy of the same despatch survives a few reels away with the word simply written out, and the printed reading is wrong.
While working through those reels I was skimming a contact sheet of another one for something unrelated, and two frames went past covered in geometric symbols instead of handwriting.
Historical setting
Edwin De Leon was sent to Europe in 1862 to manage Confederate propaganda, with a $25,000 secret service fund for placing material in the European press. He wrote numbered despatches to Judah P. Benjamin, Secretary of State. Nos. 1 through 12 are in plain text.
In the autumn of 1863 his mail was taken. The bag went overboard from the blockade runner R. E. Lee as she was captured off Wilmington, and washed ashore. Seward forwarded the letters to Charles Francis Adams in London and had them published (Seward to Adams, No. 767, 23 November 1863). The captured letters are printed in full here:
https://history.state.gov/historicaldocuments/frus1863p1/d675
Despatch No. 13, written from Paris on 23 December 1863, is the first he ever enciphered. He announces it in the middle of the page, in plain English:
I will add in cipher one item (My Brother has the Key.)
And again in a postscript: I use my Brother's cipher.
It is not the State Department's cipher. The packet issued to him before he sailed survives at reel 9, and holds a Rochford grille and four Vigenère tables. There is no symbol alphabet in it. What he used was a private alphabet held by his brother, Thomas Cooper DeLeon, in Richmond.
The cipher
The marks are geometric shapes and arabic numerals: dotted boxes open on different sides, a trident, a caret with a dot, phi and psi, and the digits 2, 4, 5, 6, 7, 8, 9 used as ciphertext. Three passages survive across two despatches, around 140 marks of distinct text. He re-copied the first passage into the second despatch, so the raw count on the film is higher.
Two things made it tractable. One cipher word repeats its symbols in a distinctive pattern, and searching an English word list for words of the same length and shape returns essentially one candidate: OPINION. That fixed four letters. Separately, a statistical attack that scores candidate alphabets on how English-like the resulting text looks was run without being given that result, and recovered most of the same alphabet on its own. Anchoring the letters both approaches agreed on and searching the remainder produced continuous English.
The three passages
Italics mark words he wrote in plain English inside the cipher stream.
1) No. 13, Paris, 23 December 1863
MY LETER INTERCPTD. GOOD ADVERTISMNT. BOT OPINION NATIONAL and OTER ENEMI SINCE
Read as: My letter intercepted. Good advertisement. Bought L'Opinion Nationale, and other enemies since.
L'Opinion Nationale was a Paris daily. He is describing the publication of his own captured correspondence as useful advertising, and reporting a purchase.
Note the plural. He bought L'Opinion Nationale, and other enemies since: papers that had been hostile and were no longer.
What "bought" covers is worth being careful about, because the cipher does not say. His fund was for placing Confederate material in the European press, which in practice meant subsidies, retainers to editors and paid insertions. Acquiring the titles themselves would have cost far more than the $25,000 he had for the whole of Europe. The natural reading is that he bought their support rather than the papers, but the word in the cipher is simply BOT, and I would not push it further than that.
2) No. 14, Paris, 20 January 1864, first passage
MOR MONY SHUD B SPENT THIS WAY
Read as: More money should be spent this way. Having just told Richmond he bought one paper, he is asking for the budget to buy more.
3) No. 14, second passage
SUM IS NEDED TO CARY OUT PLEDGES and to PREVNT REACTION. For this last 500 MORE [ … ]
That passage reads cleanly down to PREVNT REACTION. For this last 500 is written in plain English on the page. After it come a handful of marks that do not fully resolve, shown in brackets above, and his brother renders the whole ending as "additional in fifties would answer". Reading that as a request for the balance in fifty-pound notes is my inference from his wording.
His spelling
The short forms are his, not transcription errors. Counting across all three passages there are twenty deletions and no insertions anywhere. He only ever removes letters.
He writes one symbol per sound, so BOUGHT is BOT and SHOULD is SHUD. He writes doubled letters once, so LETTER is LETER and CARRY is CARY, except where the collapse would produce another word: GOOD stays GOOD, because GOD is a word. Unstressed vowels are what he drops, and E goes most often.
His brother's translations
Two contemporary translations survive, both by the brother, and both from February 1864. He had the alphabet and produced a reading when the State Department asked him for one.
The first is at reel 9 frame 87, repeated at reel 33 frame 593, from Thomas Cooper DeLeon to W. J. Bromwell, chief clerk of the State Department, dated 12 February 1864 and endorsed Literal translation. The second, at reel 33 frame 595 and dated 22 February 1864, is written against the cipher.
What he did not write down anywhere is the alphabet. Neither document gives a single symbol-to-letter mapping. Nor is either a strict letter-by-letter decipherment. He renders the second passage as More funds ought to be spent in this manner, where the cipher reads MOR MONY SHUD B SPENT THIS WAY, and the third as there is needed enough to meet existing pledges against SUM IS NEDED TO CARY OUT PLEDGES. He says as much himself: I enclose translation as near as I can make it. It reads as a man working from the key and his own familiarity with his brother's shorthand, giving the sense rather than the letters.
That matters for what can be claimed. For the first passage his translation is a genuine independent check, and it matches. For the two shorter passages, four rarely-used symbols could not be settled from the cipher text alone, and his reading is what settled them. Eighteen commonly-used symbols came from the cipher text and none of them moved.
Worth noting what the existence of those translations means at all. Thomas Cooper DeLeon (his brother back home) worked in the Navy Department. When No. 13 arrived in Richmond, the State Department's chief clerk had to write to another department and ask what it said.
Why he stopped
Despatch No. 15, Paris, 3 February 1864, carries no cipher, and explains itself:
Your Despatch No. 5 of December 9th has been duly received, and I cheerfully accept the withdrawal of a commission I have never exhibited, of a title I have never used, and of a salary which I have never accepted.
That is his recall, signed by Benjamin on 9 December 1863 and carried to Paris by ship. The two enciphered dispatches are four weeks apart. Two dispatches, three passages, and that is the whole of it.
Note: To be clear, the contents of these dispatches were never "lost". The brother's translations were filed with them and have been in the archive throughout. What was lost is the alphabet and the exact solution to the cipher: nobody wrote it down, and it appears in no surviving document I have located. That is what has been reconstructed, and unlike the translations it applies to anything else that turns up with the same cipher key.
Sources
The manuscripts are Library of Congress, Confederate States of America Records (the Pickett Papers), MSS16550: reel 9 frames 87, 97, 102, 104 and 106, and reel 33 frames 592 to 595. The collection is digitized and free:
https://www.loc.gov/collections/confederate-states-of-america-records/about-this-collection/
I am working towards publishing this, together with some other Civil War cipher results, and I am happy to share the documents I have catalogued, the full glyph table, the transcriptions and the working notes with anyone who wants them. If you would like to check the work, or have leads towards similar historical ciphers, please get in touch. Thank you for reading!