265. Marriage, Sidney G. Summers and Amelia Countryman, Garfield County, Oklahoma, 24 Apr 1919. Oklahoma County Marriages, 1890–1995. GS Film Number 1398700, Digital Folder Number 004532287, Image Number 00636. Family History Library, Salt Lake City, Utah. (Images: Family History Library. Image on file.)

767. Sidney Summers Household, 1920 U.S. Federal Census. Washington Township, Garfield County, Oklahoma. 5 Jan 1920. Enumeration District 80, Roll T625_1463, Page 2A. U.S. National Archives and Records Administration, Washington, D.C. (Images: Ancestry.com. Image on file.)

350. Sidney G. Summers Household, 1930 U.S. Federal Census, Fairview Township, Cowley County, Kansas, 13 Apr 1930. Roll 698, Page 3B, Enumeration District 0015, Image 29.0, FHL microfilm 2340433. U.S. National Archives and Records Administration, Washington, D.C. (Images: Ancestry.com. Image on file)

754. Sydney G. Summers Household, 1940 U.S. Federal Census. Fairview Township, Cowley County, Kansas. 3 May 1940. Enumeration District 18-19, Roll m-t0627-01226, Page 4A. U.S. National Archives and Records Administration, Washington, D.C. (Images: Ancestry.com. Image on file.)