"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MZ7T-WJT : accessed 14 December 2014), Peter J Wallendal, Detroit Ward 2, Wayne, Michigan, United States; citing sheet 10A, family 166, NARA microfilm publication T625, National Archives and Records Administration, Washington D.C.; FHL microfilm 1,820,803.