Robert Green Ingersoll, b. 11 Aug 1833 in Dresden, Yates County, New York, d. 21 Jul 1899 in Dobbs Ferry, Westchester County, New York, son of John Ingersoll & Mary Livingston.
Robert Leroy Ingersoll, b. 5 Jun 1819 in New Berlin, Chenango County, New York, d. 28 Aug 1886 in Pulaski, Oswego County, New York, son of Ebenezer Ingersoll & Sarah Rich.
Robert Newell Ingersoll, b. 29 Jan 1875 in Springfield, Hampden County, Massachusetts, d. 20 Mar 1948 in Springfield, Hampden County, Massachusetts, son of James Child Ingersoll & Ellen Persis Newell. He married Florence Lenore Bradley on October 10, 1899 in Springfield, Hampden County, Massachusetts.