"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KQ17-WFM : 28 July 2019), Dorothy Race in household of Harry Race, Livingston Town, Columbia, New York, United States; citing enumeration district (ED) 11-41, sheet 10A, line 17, family 237, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 2519.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JP7Z-FPF : 7 January 2021), Dorothy M Penzenik, 02 Dec 2001; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).