Hazel Bernadine Gressling|b. June 18, 1911\nd. August 14, 1938|p1047.htm|Charles Edward Gressling|b. July 28, 1886\nd. December 31, 1947|p1044.htm|Mary Gertrude Oppold|b. November 15, 1885\nd. March 20, 1959|p2468.htm|||||||Joseph Oppold|b. August 27, 1854\nd. May 16, 1893|p2457.htm|Emma M. Hart|b. February 7, 1860\nd. June 24, 1956|p1228.htm|
[S231] Betty Warren, Oppolds in America (Alden, Iowa: Graphic-Agri-Business, 1985), p. 93. Hereinafter cited as Oppolds in America.
[S642] United States Census Office, 1930 U.S. Census, Population Schedule, Minehaha Township, Benton County, South Dakota (Washington, DC: National Archives and Records Administration, 1930). Hereinafter cited as 1930 U.S. Census, Population Schedule, Minehaha Township, Benton County, South Dakota.