Thanks to Narf, Fett, and Dan Stevenson more updates:
Casper Cat 1 is another Dopey Duck 2 (Im not sure why the master list has #7 as 1+2; GCD has that as just #2)
Kiddie Kapers 17 is NOT Cowboys n Injuns 8, so likely 7 (but needs confirmation)
Muggsy Mouse 2 is ME's Muggsy Mouse 4; Muggsy Mouse 14 is another ME Muggsy Mouse 3.
Police Trap 16 is Mainline's Police Trap 1
Also
Famous Funnies 18 might be Funny Tunes 1 or 3 or Space Comics 5. Same with Space Comics 8
Marmaduke Monk 1 and 14 are the same
Red Mask 1 and 8 are the same
Sharpy Fox 1 should say "Previously thought to be All Surprise 9 (Timely) in error" so there is no confusion.
And I'm almost certain Tom-Tom 1 is Tick Tock Tales 22, but I'd need an index of Tom-Tom 1 to be sure. (Tom-Tom 1 is now the only unindexed IW/Super!!!!)