"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K73C-6NJ : accessed 26 Sep 2012), Perry Thompson, Clark Township, Atchison, Atchison, Missouri, United States; citing enumeration district (ED) 3-5, sheet 8B, family 167, NARA digital publication T627, roll 2082.