[swarmee]

The autograph looks like "John W.", so either Honus Wagner or the original owner... ;-)

Oddities:
Devlin has a miscut back and centered front.
Birmingham has a double-printed blue back, or had extra ink applied during printing. Same as a Ferris and Ganley (unless the Ganley is writing).
Cross 350 back either has two blue ink spots or print defects.
Dooin has a nice plate scratch on back.
Magee on bottom right of picture has a name at top.
Both Lindaman cards have a recurring print defect in the '0' of 150.
A couple were owned by S.S. and B.W.K.

Are you going to grade the better conditioned ones and Hall of Famers? Maybe bobby will run another one for the board if you ask him nicely... or you could submit at a $499 max value with a submitter like PC Sportscards (jewcer2k5 on Blowout) to get access to the $25 service level that PSA is only allowing for registered corporate bulk submitters. You can go through PSA's pop reports that are broken down by back and see if any of yours are "rarities" or "low pops" that would sell much better with less than 5 annotated so far in PSA holders with that specific back advertiser and factory number.