 Known within the family as Max, he too became a politician, serving as a United States Representative from New York State (1893–1903) and as Mayor of New York City from 1904 to 1909.McClellan's daughter, Mary ("May") (1861–1945), married a French diplomat and spent much of her life abroad.McClellan's wife, Ellen, died in Nice, France in 1915 while visiting May at her home "Villa Antietam".