"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KM1X-DK9 : accessed 17 May 2014), Ed Franken, Area A, Sioux City, Sioux City, Woodbury, Iowa, United States; citing enumeration district (ED) 97-61A, sheet 4A, family 67, NARA digital publication of T627, roll 1215.
"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XMKX-9R8 : accessed 17 May 2014), Edward Franken, Sioux City, Woodbury, Iowa, United States; citing enumeration district (ED) 0080, sheet 3A, family 58, NARA microfilm publication T626, roll 689.