NPS Photo
A very young William Leslie Edison.
William Leslie was born on October 26, 1878. Like his older brother, William boarded at St. Paul's School, Concord, New Hampshire, and the J.M.HawkinsSchool on Staten Island. He later studied at the SheffieldScientificSchool at Yale. He married Blanche Travers. He served in the military during the Spanish-American War in 1898 and again in the First World War (though he wrote his father in 1918 in a failed attempt to get a discharge).