Jack Chesbro
- Given Name
- John Dwight
- Nickname(s)
- Happy Jack, Happy
- Born
- 6/5/1874 — North Adams, MA, USA
- Died
- 11/6/1931 — Conway, MA, USA
- Weight
- 180 lbs
- Height
- 5' 9"
- Throws
- R
- Bats
- R
- Team(s)
- Pittsburgh Pirates (1899–1902)New York Highlanders (1903–1909)Boston Red Sox (1909)
- Debut
- 1899-07-12
- Final Game
- 1909-10-02
- Gravesite
- Find-a-Grave
20-Loss Season
1908 · New York HighlandersW14L20ERA2.93WHIP1.188