According to the 1930 Census in Texas, at 8 she was living in Tyler, Smith County, Texas.
According to the 1940 Census in Texas, at 18 she was living in Smith Texas.
Her full name was in a family tree made by Ruth Elizabeth Kruspe (Kruspe-80)
https://www.familysearch.org/ark:/61903/1:1:HVH3-VMM?from=lynx1UIV8&treeref=LYLL-821 "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:HVH3-VMM : accessed 23 September 2021), Helen A Hudnall in household of William R Hudnall, Tyler, Smith, Texas, United States; citing enumeration district (ED) ED 11, sheet 5A, line 20, family 117, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2390; FHL microfilm 2,342,124.
"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K43X-8BD : 10 January 2021), Helen O Hudnall in household of Will R Hudnall, Justice Precinct 1, Smith, Texas, United States; citing enumeration district (ED) 212-6, sheet 69A, line 25, family 502, 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 4137.
https://www.familysearch.org/ark:/61903/1:1:QV1Z-MQX4?from=lynx1UIV8&treeref=LYLL-821 "Texas, County Marriage Records, 1837-1965," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QV1Z-MQX4 : 23 February 2021), Ralph R Rassmann and Helen Oden Hudnall, 02 Jun 1945; citing Marriage, citing Smith, Texas, United States, Texas State Library, Archives Division, and various Texas county clerks; FHL microfilm 1,853,825.
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