It was CarlsenHighway's post that prompted me to look for them, so thanks all around!

I have the book, 'The Making of the African Queen (or, How I Went to Africa with Bogart, Bacall, and Huston and almost lost my mind)' by Hepburn, and didn't recall these photos being in it.

I found 'em on the wonderful, terrible, internet after some digging.

No offense to Huston, Bogart, Bacall, but to me there is no doubt who are the 'stars' of these photos: