John Joseph Warner
- Bats Left, Throws Right
- Height 5' 11", Weight 165 lb.
- Debut April 23, 1895
- Final Game September 30, 1908
- Born August 15, 1872 in New York, NY USA
- Died December 21, 1943 in Far Rockaway, NY USA
John "Jack" Warner played 14 seasons in the big leagues, almost exclusively as a catcher. Warner, not much of a hitter, earned his keep with his defense and his ability to get hit by the pitch. Oddly, he seemed to get better with the bat as he aged - his best years as a hitter were his last.
After his days in the majors he played three years in the minors and also managed a couple of minor league teams. During his major league days, he was regularly called upon to be a fill-in umpire, doing so for 6 games between 1896 and 1908.
The book Baseball: A History of America's Game says that Warner was notorious for his efforts to make life miserable for Irish Catholic players.
He is buried in St. Mary Star of the Sea cemetery in Cedarhurst, NY.
Warner appears as a minor character in Eric Rolfe Greenberg's 1983 novel The Celebrant.