Thanks to a board member for a scored program from Bob Feller's 18-strikeout performance against the Tigers on Oct. 2, 1938. The person who scored it did a nice job (I didn't want to flatten the program to scan the inside pages, hence a scan of only the cover).
I already had a ticket stub from the game, plus the 1954 Topps Scoop card that Feller once owned that highlights the day, so this makes a nice trifecta.