A long-time resident of Braddock, Tommy Quinn played professional baseball in the 1880s for the Pittsburgh Alleghenys, forerunner of the Pittsburgh Pirates. Quinn's baseball career ranged from the big leagues to semi-pro to amateur athletic clubs, and lasted the better part of two decades.
Born in Baltimore, Quinn was one of seven children born to Bridget and John Quinn, a stonecutter. In the early 1880s, Tommy Quinn moved to Pennsylvania and got a job at Edgar Thomson Steel Works in Braddock.
His official baseball career started in 1885 with the McKeesports. The next season he was in the majors, playing for the Pittsburgh Alleghenys. Quinn played two more seasons for major-league teams, as a catcher for the Baltimore Orioles and the Pittsburgh Burghers. Among his teammates on the Burghers was future Pennsylvania governor John K. Tener. Quinn was a guest at Tener's gubernatorial inauguration in 1911.
In 1888, Quinn married English immigrant Hannah Powers. Tommy Quinn became a successful businessman in Braddock, owning a saloon and hotel.
Tommy Quinn opened a savings account at Dollar Bank in August 1886.