"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MWBD-VQ3 : accessed 22 Jan 2014), John S Duscher, Hersey, Nobles, Minnesota, United States; citing sheet , family 20, NARA microfilm publication T625, FHL microfilm 1820845.
"United States Census, 1910," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/ML1C-S32 : accessed 23 Jan 2014), John Duscher in household of Hie Doyen, Sherman, Calhoun, Iowa, United States; citing sheet , family 136, NARA microfilm publication T624, FHL microfilm 1374407.