Cohen’s love affair with lacrosse began in 1934 as a defenseman at New York Military Academy. He played college lacrosse at Lafeyette College where he was the state’s leading scorer in 1939.
He was a volunteer assistant lacrosse coach for the freshman team at Harvard University before serving in Europe during World War II as a pilot in the U.S. Army Air Corps.
After the war, Cohen graduated from Harvard Law School in 1947.
In 1964, Cohen was instrumental in the establishment of the Midget Lacrosse League in Port Washington and the larger Long Island Midget Lacrosse League in 1969. Throughout the 1970’s Cohen coached post high school and college summer league teams and formed an indoor lacrosse league for high school students. He founded the North Hempstead Lacrosse Club in 1982.
Cohen was a selector and administrator for the USA Team in the 1986 and 1990 World Games.