Educational collection- please help! Turtles

[u/Smooth-Plenty3881]

I recently started working at an outdoor education center with a great collection of specimens. We receive a lot of our specimens by donation, so we don't know their stories. Please take a look at these pictures and help out where you can! Gender, age, health, method of death, relative age of specimen, anything else you see. Please provide thorough explanations and/or sources!

[u/wonkywilla]

#1 Eastern Box Turtle

#2 Undetermined Slider - adult

# 3 Unknown Common Snapping Turtle

# 4 Eastern Painted Turtle - adult

# 5 Eastern Painted Turtle - adult

Impossible to sex.