"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K7HZ-RHT : accessed 25 Sep 2012), Irene Trauernicht, Ward 24, St. Louis, St. Louis City, St. Louis City, Missouri, United States; citing enumeration district (ED) 96-578, sheet 8A, family 173, NARA digital publication T627, roll 2205.