Great topic, Ryan!
Apologies, but I'm going to go a little over and list more than one card.
T211: E. DeMontreville (with the E.), Seitz, Thomas
T215-1 Walter Johnson
D303 Mothers' Bread Buck Weaver
1913 Voskamp's Pirates Max Carey
T217: Akin, Criger, Peckinpaugh, Stein, Wares
Cards where I'd simply enjoy proof that they exist:
1913 Voskamp's Pirates Ed Mensor
D303 Mothers' Bread Bressler and Lajoie
Thanks for reading this far!
Steve