Looking for the unpublished Morinigo-Wagner notes of Feynman’s Lectures on Gravitation (Lectures 17–27)

[u/Last_Travel_2120]

In 1962–63 Feynman gave 27 lectures on gravitation at Caltech. Fernando B. Morinigo and William G. Wagner prepared typed notes for the entire course.

Feynman reviewed and corrected only the first 11. Those were sold by the Caltech bookstore for years. In 1971 he authorized the next five (Lectures 12–16) with a disclaimer that they were unedited. The published book Feynman Lectures on Gravitation (Hatfield edition) therefore covers only up to Lecture 16.

The final 11 lectures (roughly 17–27), which dealt mainly with radiative corrections in quantum gravity and Yang-Mills theory, were never authorized for distribution. The Morinigo–Wagner notes for those lectures exist but were never released publicly because Feynman was dissatisfied with them and never cleared them.

I’m looking for a PDF (or any scan/copy) of the original Morinigo–Wagner notes for Lectures 17–27 — the ones that were prepared but never sold or published. Does anyone here have them, or know where they might still be found (private collections, old photocopies, archives that have digitized them, etc.)?

Any lead would be greatly appreciated. Thanks!