Career
The 5 ft 9 in (175 m) Connecticut native occasionally played second base later in his career. He batted and threw right-handed. Born in New Haven, Connecticut, Corcoran gained the nicknames Corky and Tommy the Cork.
He was considered a hard-working, supple-handed shortstop.
A mediocre hitter, Corcoran batted.300 in a season just once (1894). He was a barehanded fielder early in his career when gloves were gradually becoming standard equipment, and made the transition to a glove without difficulty.
He became adept at going to his right to field ground balls backhanded. Corcoran set a still-standing Master of Laws record for shortstops with 14 assists in a nine-inning game.
(Lave Cross had 15 assists in a 12-inning game in 1897) Corcoran finished in the top 10 in the league in at bats seven times.
Over an 18-season career, Corcoran batted.256, with 34 home runs and 1,135 RBIs. He had a total of 387 stolen bases, scored 1,184 runs, and made 2,256 hits in 8,812 career at-bats. He accumulated 2,957 total bases.
After retiring as a player, Corcoran became an umpire.
His umpiring included one season in the short-lived third major circuit, the Federal League. He died at the age of 91 in Plainfield, Connecticut.