Jack Sullivan (lacrosse)

John Sullivan, known as Jack Sullivan, was a Canadian-born lacrosse player who competed for the United States and won a silver medal with the St. Louis Amateur Athletic Association at the 1904 Summer Olympics, in the team that lost the final to the Winnipeg Shamrocks. He was born in Cobourg, Ontario, on 29 August 1870, a date Olympedia takes from baptismal records, although the 1901 census listed his birth as 20 March 1872 and his grand-nephew supplied the correction. Olympedia says that very little is known about him, and no date or place of death is recorded for him, so his later life remains unwritten.