McGunnigle took over as manager of the
Brooklyn Bridegrooms in
1888, after the club had finished sixth in the
American Association the previous year under owner/manager
Charlie Byrne. McGunnigle guided the team to a second-place finish that year, four games behind perennial league champ
St. Louis. The
next season, McGunnigle's boys edged the Browns for the American Association
pennant. Facing the
New York Giants of the rival
National League in the 1889
World Series, the Bridegrooms were outscored by more than 20
runs and bowed, 6–3, in the exhibition. The team was admitted to the National League the following year, and McGunnigle again led the team to a pennant, helping the Bridegrooms become the first team in any professional sports league to win two championships in consecutive years. Despite back-to-back pennant runs (and tying the
1890 World Series 3–3–1), McGunnigle was let go after the season and replaced by
John Montgomery Ward. After the
1891 Pittsburgh Pirates got off to a 31–47 start on the heels of a 23–113 season, the club demoted captain/manager
Ned Hanlon and hired McGunnigle. (Relatedly, Hanlon would later be a successful manager for the Brooklyn club at the turn of the century.) McGunnigle managed the Pittsburgh club to a modest 24–33 record over the remainder of the year. He was not brought back for the following season. During 1891, McGunnigle also managed the
Providence team in the amateur
Eastern League, playing in the first Sunday organized baseball game ever played in New England on August 9, 1891, in
Rhode Island. At the time, custom and law forbade Sunday baseball, but it was allowed by officials in
Warwick, Rhode Island for games at the
Rocky Point Resort. When the
New England League was re-formed in
1892, McGunnigle again became the player/manager of the Brockton club. He joined the team at midseason, immediately spurring Brockton on a 12-game winning streak and vaulting the team into first place. However, the club could not retain their spot in the standings. He helped
Fred Doe organize the first
professional baseball game to ever be played on a Sunday in New England. The Brockton club won the game at Rocky Point Resort, 7–6, over
Woonsocket on July 10, 1892. The game eventually led to a change of Massachusetts law, which forbade Sunday baseball, in 1928. McGunnigle returned to Lowell in
1893, and spent 1894 and 1895 involved in the game of
polo. In
1896, the NL's
Louisville Colonels started 2–17 under manager
John McCloskey, who was subsequently let go. McGunnigle came on board and managed the Colonels to a 36–76 record the rest of the way, finishing last in the league, two games behind St. Louis. McGunnigle was not asked to manage the team further, being "roughly handled" in his dismissal, according to the
Brockton Times. His career professional managerial record in 586 games with Brooklyn, Pittsburgh, and Louisville was 327–248 (.569). An automobile struck a carriage carrying McGunnigle and other men in an 1897 accident, throwing them out of the vehicle. McGunnigle was chronically ill thereafter, and homeridden for the last months of his life. He died at age 44 and is buried at
St. Patrick's Cemetery in Brockton. ==Trivia==