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MarkFrank said -- "If I do that, then we don't discern who "I" can identify, but rather who I can pick out with photo help."
That is an interesting take on this - I never intended it to be a "closed book" test - it's hard enough when you do have a very clear team photo for reference (as with the Pittsburg Press supplement in Old Cardboard that I recommended).
As to the date - one of the players was gone after 1909, another did not arrive until well into the 09 season, so the intent was likely to depict members of the 1909 team..