Joseph Harrison Conzelman
- Bats Right, Throws Right
- Height 6' 0", Weight 170 lb.
- School Brown University
- Debut May 1, 1913
- Final Game August 15, 1915
- Born July 14, 1889 in Bristol, CT USA
- Died April 17, 1979 in Mountain Brook, AL USA
Joe Conzelman pitched three seasons for the Pittsburgh Pirates, winning six games and recording two saves with a 2.92 ERA in 163 1/3 innings.
Joe made his major league debut in May 1913, and gave up only two earned runs in 13 innings (three games). Most of his time that year was spent with the Atlanta Crackers with whom he went 11-4. He was around the entire season with the Pirates in 1914, appearing in 33 games and posting a 2.94 ERA (the league ERA was 2.78). The next season, [1915 Pirates|1915]], he pitched 18 games in the majors and 10 games with the Indianapolis Indians, for whom he had a 2.04 ERA.
In 1922, the proceedings of the American Society of Civil Engineers state that he was an associate member, living in Birmingham, AL.  The Brown University site  says Conzelman was inducted into its Hall of Fame in 1971. It states that he had a fastball and a sharp drop ball.
There was also a Joe Conzelman who played for Harvard in the 1950s. Presumably Joe's son, he was named Joseph Harrison Conzelman, Jr., and was a resident of Mountain Brook, AL, a suburb of Birmingham, where the senior Conzelman later died. The son, in addition to being a three-sport athlete at Harvard, was chairman of Southeast Materials Corporation.