Help identifying player Phila A's c. 1930

[Darner]

I'm trying to identify this Philadelphia Athletics player. It has a 1930 date stamp and the player is identified as "Henry Supplee". Problem is there is no player named Henry Supplee listed on the 1930 A's roster (nor could I find any record of any Henry Supplee playing major or minor league baseball ever).

If the name is a mistake and I've seen some mistakes on press photo captions before, I'm hoping this player is Al Mahon, a pitcher whose major league career was 3 games for the A's in 1930. Googling Mahon only comes up with one picture and I don't know where that comes from (another picture on Baseball Prospectus mistakenly shows Art Mahan). It's not a lot to go on but if anyone has a picture of Al Mahon, I'd love to see it. Thanks for any help.