Cornelius F. O'Brien (May 8, 1898 – December 1, 1993) was a professional American football and police officer.
He played professionally as a Tackle in the American Professional Football Association (AFPA)—now known as the National Football League (NFL)—in 1921 with the New York Brickley Giants and in first American Football League (AFL) with the Boston Bulldogs in 1926.
[1] O'Brien served in the United States Army during World War I.
O'Brien died on December 1, 1993, of congestive heart failure, New England Memorial Hospital in Stoneham, Massachusetts.
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