1860-1922. American church historian. Born in Portland, Maine, he was educated at Amherst College, Hartford Seminary, and Leipzig University. In 1888-89 he lectured at Bryn Mawr College, then for twelve years was professor at Hartford Seminary before becoming professor of ecclesiastical history at Yale, where he remained till his death. A member of many learned societies, he wrote books ranging from On the Increase of Royal Power under Philip Augustus (1888) to American Congregationalism, biography of churchmen, (1900), French Trans-Geneva (1909), and his most noted, A History of the Christian Church (1918).