- Card series: Beginnings: 1880's
- City: Cleveland
- Team: Spiders
- League: National League
John F. O’Brien (1867-1892) pitched four seasons in the majors, changing leagues every year. He played in the AA, the NL, & the Players’ League – all for Cleveland teams, and moved to the Boston Reds in the AA for the 1891 season, his last due to his untimely death from pneumonia the next year.
- Had signed with Cincinnati to play in ’92 but passed away at his home in Troy, NY
- Was 18-13 for the pennant-winning Boston club in ‘91