Jeremiah James Sweeney
- Bats Unknown, Throws Unknown
- Height 5' 9½", Weight 157 lb.
- Debut August 22, 1884
- Final Game October 16, 1884
- Born September 4, 1857 in Boston, MA USA
- Died August 25, 1891 in Boston, MA USA
Jerry Sweeney was a solution for the 1884 Kansas City Cowboys. 1884 was the year of three leagues, and so teams were often scrambling to find good personnel. Sweeney, who was 24 that year, had not previously played in the major leagues and made his debut on August 22 of that year. He hit .264, which doesn't sound like much till one realizes that the team's overall average was only .199. The team played in a park that heavily favored pitchers.
The Cowboys won only 16 of their 79 games that year in the Union Association, a league whose status as a major league remains controversial and whose caliber of play was much below the two other major leagues of the time. In addition to Sweeney, two other players played significant games at first base that year. Jim Cudworth appeared in 32 games and hit .147 in his only season in the "majors". Thomas Gorman, on the other hand, hit .321 in his 25 games between June 10 and July 25. In spite of that impressive average, he never played another season in the majors.