Wilhem!
Audio preservationist Craig Smith has restored and uploaded a whole host of classic sound effect recordings to freesound.org: Preserving the Sunset Editorial Sound Effects Library from the USC Archive
Some very cool stuff in here, but the signature item is the complete original ADR session that produced the “Wilhelm Scream”! https://freesound.org/people/craigsmith/sounds/675810/
I expect “not an ow!” to land in a couple dozen dance tracks by the end of the summer.