Hello Bob!
Owen, Jack McQuaid is a tough N172 card. Jack's card was first issued in 1888 with a nameplate that reads "JACK McQUAID, Umpire American Association" and then re-issued in 1889 with an updated nameplate that read simply "McQUAID, Umpire" but he was then working the NL circuit (league change between 1888 & 1889).
The Denver player is actually Mortimer Martin "Mart" McQuaid (not James). This is a correction to the book due to fine research by Scot Reader.
Back to Umpire McQuaid, he is also shown on OJ card 309-4; posed behind Chippy McGarr (not my card).
