Shorty Gallagher debuted on August 13, 1901, playing for the Cleveland Blues at League Park I; he played his final game on August 13, 1901, playing for the Cleveland Blues at League Park I.
Shorty Dee debuted on September 14, 1915 and played his final game on September 14, 1915.
Shorty Des Jardien debuted on May 20, 1916 and played his final game on May 20, 1916.
John Gallagher debuted on August 20, 1915, playing for the Baltimore Terrapins at ; he played his final game on October 3, 1915, playing for the Baltimore Terrapins at .
Bob Gallagher debuted on May 17, 1972, playing for the at ; he played his final game on September 26, 1975, playing for the New York Mets at Shea Stadium.
Bill Gallagher debuted on May 2, 1883, playing for the Baltimore Orioles at Oriole Park; he played his final game on June 18, 1884, playing for the Philadelphia Keystones at .
Shorty Fuller debuted on July 19, 1888, playing for the Washington Nationals at Swampdoodle Grounds; he played his final game on June 2, 1896, playing for the New York Giants at Polo Grounds III.
Dave Gallagher debuted on April 12, 1987, playing for the Cleveland Indians at Cleveland Stadium; he played his final game on October 2, 1995, playing for the California Angels at Anaheim Stadium.
Doug Gallagher debuted on April 9, 1962, playing for the Detroit Tigers at Tiger Stadium; he played his final game on September 26, 1962, playing for the Detroit Tigers at Tiger Stadium.
Gil Gallagher debuted on September 13, 1922, playing for the Boston Braves at Braves Field; he played his final game on October 1, 1922, playing for the Boston Braves at Braves Field.
Sean Gallagher debuted on June 9, 2007, playing for the Chicago Cubs at Wrigley Field; he played his final game on October 3, 2010, playing for the Pittsburgh Pirates at PNC Park.
William Gallagher debuted on August 19, 1896, playing for the Philadelphia Phillies at Baker Bowl; he played his final game on September 1, 1896, playing for the Philadelphia Phillies at Baker Bowl.
Al Gallagher debuted on April 7, 1970, playing for the San Francisco Giants at Candlestick Park; he played his final game on September 27, 1973, playing for the California Angels at Anaheim Stadium.