Don't know if this counts, but it's O'Rourke's earliest baseball photo. He was 20 years old and his team was the 1871 Stratford Osceolas.
O'Rourke is standing on the right.
This "albumen photo" was auctioned by Lelands several years ago.
The caption under the photo is:
"Osceola Base Ball Club of Stratford. Champions of Connecticut, 1871."