"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K7QV-4QB : accessed 25 Sep 2012), William Trauernicht, Union Township, Holt, Holt, Missouri, United States; citing enumeration district (ED) 44-20, sheet 7A, family 147, NARA digital publication T627, roll 2112.