B. 3/31/1874 to Sidney Warner (1807-1886) & Minerva Jane Clark (1834-1915) in Ontario. He m. Alice Morse Fales in 1898 & d. in Boston. Was founding President of the Lennox and Addington Historical Society (Ontario, Canada). Served in position 1907-1916. Was then appointed Curator of Canadian History and Literature at Harvard University in Boston, MA. Issue: Unknown. Siblings: Stanley Clark, Sidney, Annetta Jane, Mary Augusta, Mabel Lucinda, William Arthur & Florence Meacham Warner.