"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KWVZ-DNN : 26 January 2020), Mary Volcik in household of John Volcik, Justice Precinct 2, Fayette, Texas, United States; citing enumeration district (ED) 75-10, sheet 9B, line 61, family 175, 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 4032.

• Title	"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KWVZ-DNN : 26 January 2020), Mary Volcik in household of John Volcik, Justice Precinct 2, Fayette, Texas, United States; citing enumeration district (ED) 75-10, sheet 9B, line 61, family 175, 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 4032.
  Short Title	Mary Volcik in household of John Volcik, "United States Census, 1940"
  Source ID	S77
  Linked to	Volcik, Mary Helen Family: Volcik, John Joseph / Canik, Frances M.