"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K432-CYY : accessed 26 Sep 2012), E C Trauernicht, Justice Precinct 3, Tarrant, Texas, United States; citing enumeration district (ED) 220-21, sheet 16B, family 317, NARA digital publication T627, roll 4142.