- Card series: Beginnings: 1880's
- City: Chicago
- Team: Maroons
- League: Western Association
John T. (or F.) Crogan is another of those tantalizing “mystery men” of the Old Judge card era. Many of their subjects were photographed in anticipation of a major league career that never happened. In this case, Jack was posed for five images in the OJ 1888 series. He wears the uniform of the Chicago Maroons of the Western Association as depicted in the Miller/Gonsowski/Masson definitive OJ text with middle initial T. whereas Baseball-Reference.com has him with F. Prior to his brief time with the Maroons (21 games, .188 BA) Jack was with Wheeling in ’87, apparently his first year in the minors. He went on to play in the Texas and Tri-State Leagues before finishing up with Davenport of the Illinois-Iowa League in 1891. The rest of this would-be big leaguer’s exploits are lost to history.
- The Miller compilation shows a possible alternate surname spelling of Croghan
- The only batting pose available shows Jack in a left-handed stance