2:15 from "SPOOK NO EVIL"[1953,with Casper]
The one plkaying twice, in "PENELOPE THE ELPHANT" with Felix and Rockbottom, from "FROM MAD TO WORSE" with Herman and Katnip and Herman's newphews [1957]
The one where Bluto/;Brutus and Wimpy are walking, from "TERRY THE TERROR"[1960,Prof.Schmaltz]
I don't know where the Stuffy post-credit cue came from,though.
I also enjoy the Sharples cues,too. That Penelope the Elephant episode had a lot of Herman and Katnip cues in the second half, from "OWLY TO BED" and "FELINEOUS ASSAULT"..the cue at 2:15 in that Popeye one also reappears in second part of the Felix short, where the Scots worm frees Felix.