1) "The Bingham Family in the United States, especially of the State of Connecticut", compiled by Theodore A. Bingham, M.A. (Yale), Brig. Gen., U.S. Army, 929.273 B513 bt (1927), pp. 73-74, entry 1904; p. 290, entry 18,541 pp. 519-20 entry 184,894. Not married in 1907. Listed as Helen L. 2) 1880 Littleton census, ed. 95 sheet 28, age 8. Middle initial E.