Thanks for the info on Roger Alexander and the "Fritsch" cards.
Bill McKechnie 1907 (Yeah, I forgot to properly title the post. I'm rusty, okay?)
From the current RMY auction, an Underwood & Underwood picture of Bill McKechnie on Opening Day, 1913, in a Boston Braves uniform. The Pirates had traded Bill to St. Paul the previous August, and Boston had picked him up in the Rule V draft. But after he went 0-4 against the Giants, Boston waived him, and the Yankees picked him up.
So this is a one-game-only uniform for the future HoF manager.
