Jack O'Brien (catcher)

Jack O'Brien
Jack O'Brien
	1888 baseball card of O'Brien
	Catcher / First baseman
	Born: June 12, 1860; Philadelphia, Pennsylvania, U.S.
	Died: November 20, 1910 (aged 50); Philadelphia, Pennsylvania, U.S.
	Batted: Right Threw: Right
MLB debut
	May 2, 1882, for the Philadelphia Athletics
Last MLB appearance
	September 16, 1890, for the Philadelphia Athletics
MLB statistics
Batting average	.266
Home runs	11
Runs batted in	308
	Stats at Baseball Reference
Teams
	Philadelphia Athletics (1882–1886); Brooklyn Grays (1887); Baltimore Orioles (1888); Philadelphia Athletics (1890);

John K. O'Brien (born John K. Byrne, June 12, 1860 – November 20, 1910) was an American Major League Baseball player. He played primarily catcher and first base from 1882 to 1890 in the American Association.

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