I’m reading Angels of Music by Kim Newman, and I’ve learned that there is a character called La Marmoset from an 1882 book by Albert Aiken, who is a great detective and master (mistress) of disguise.
I read this and went: “that must be where Ben Lehman got the idea for the Marmoset Detective in Animal Crime/Apocalypse World LE playbooks! Did anyone know about this!?”
Then I remembered that it was a Marmot detective, not a marmoset, and realised there probably wasn’t a connection after all.
But hot damn I would have been impressed!