1
Commonwealth of Pennsylvania, Department of Health, Bureau of Vital Statistics, Pennsylvania Birth Certificates, 1906-1913 (Harrisburg, PA (via Ancestry.com)).
2
Pennsylvania, Allegheny County, 1920 U.S. Census, Population Schedule (Washington, D.C., National Archives and Records Administration), ED 622, Sheet 25, Line 33.
3
Pittsburgh Post Gazette, Margaret Schmotzer Obituary (Pittsburgh, PA, 31 Oct 2002).
4
Pennsylvania, Allegheny County, 1930 U.S. Census, Population Schedule (Washington, D.C., National Archives and Records Administration), ED 2-326, Sheet 23, Line 94.