I read quite a few actors’ biographies or memoirs, but I’ve never seen his on the library shelf, I guess.
It’s typical for actors to appear in a guest-star role before being cast as a principal. That general (Bartford Hamilton Steele ... 3 Es, not all in a row.) was a great part.
I saw his several years ago on the History Channel, when they did a weekly Biography cameo to get people interested in the new channel. It doesn’t come with my chosen program listing, and I’m really, REALLY very close to getting rid of cable TV (Al Jazeera has a lot to do with it) and just going with Netflix.
You might be able to find it on Netflix...