1
Pennsylvania, Allegheny County, 1920 U.S. Census, Population Schedule (Washington, D.C., National Archives and Records Administration), ED 590, Sheet 11, Line 99.
2
Social Security Administration, Death Master File (http://www.ancestry.com/search/rectype/vital/ssdi/main.htm).
3
Pittsburgh Post Gazette, Mildred Eiben Obituary (Pittsburgh, PA, 31 May 1999).
4
Pennsylvania, Allegheny County, 1930 U.S. Census, Population Schedule (Washington, D.C., National Archives and Records Administration), ED 2-288, Sheet 8, Line 54.