Thomas Jefferson York
- Bats Left, Throws Left
- Height 5' 9", Weight 165 lb.
- Debut May 9, 1871
- Final Game October 1, 1885
- Born July 13, 1851 in Brooklyn, NY USA
- Died February 17, 1936 in New York, NY USA
He was an above-average hitter who played his entire career in the outfield, usually in left field. He was renowned for his defense, which was excellent in his early years. His best year with the bat was 1878, when he led the league in total bases, was second in slugging percentage, and led the league in triples.
A newspaper article from the 1880s called him hard-working, reliable, affable, and courteous.
York managed the Providence Grays for parts of two seasons, including 1881. Although he and the team did well in 1881, he was replaced in 1882 when George Wright was lured to play shortstop and his brother Harry Wright lured to manage. He had umpired a few National Association games in 1874, then was a regular umpire in 1886 when he worked games in both the American Association (16) and the National League (33).
- NL Total Bases Leader (1878)
- NL Triples Leader (1878)
- NL Bases on Balls Leader (1883)