1920 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2010. Images reproduced by FamilySearch. 1920; Census Place: Forest Park, Cook, Illinois; Roll: T625_362; Page: 12B; Enumeration District: 186; Image: 761
1930 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2002. Year: 1930; Census Place: Proviso, Cook, Illinois; Roll: 506; Page: 7A; Enumeration District: 2304; Image: 728.0; FHL microfilm: 2340241
"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KMT8-STR : accessed 24 December 2014), Alfred Raush, Maxfield Township, Bremer, Iowa, United States; citing enumeration district (ED) 9-15, sheet 10A, family 156, NARA digital publication of T627, roll 1142, NARA digital publication of T627, National Archives and Records Administration, Washington, D.C.