↑ 3.03.13.2United States Social Security Death Index, database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/JTFP-LJH : 20 May 2014), EUDORA E. IGO, 06 Jul 2008; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
↑United States Census, 1930, database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X7H4-D4P : accessed 6 February 2018), Udora E Smith in household of Stanley Smith, Binghamton, Broome, New York, United States; citing enumeration district (ED) ED 40, sheet 15A, line 43, family 392, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1407; FHL microfilm 2,341,142.
↑ 8.08.1United States Census, 1940, database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KQL4-45X : accessed 30 June 2016), Edith E Igo in household of Joseph E Igo, Ward 8, Binghamton, Binghamton City, Broome, New York, United States; citing enumeration district (ED) 4-56, sheet 10A, line 16, family 85, 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 2500.