John Laurence Gallagher (January 28, 1902 Providence, Rhode Island – September 10, 1984 Gladwyne, Pennsylvania) was a Major League Baseball outfielder who played for the Cleveland Indians for one season.
He played for one game during the 1923 Cleveland Indians season on August 24, 1923.
A single left Gallagher with a rare MLB career batting average of 1.000.
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