Could this be Moses Fleetwood Walker?
 

I have a cabinet card, purchased with a couple other matted photos of baseball player as well as two Goodwin Old Judge Proofs. This image greatly resembles a younger Moses Fleetwood Walker. What do you think?

Not close in the orbital structure and I don't think that the lower lip matches up either.

Rawn

Doesn't match.

The earlobes are a dead giveaway that it's no match.

Rob D. said it perfectly. 100% not Walker.

BTW - if you compare recent facial recognition comments on net54 with those of a few years ago - there has been a significant improvement. That's good for the hobby and good for accurate baseball image history.