- [S26] 1920 U.S. Census.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCKL-MZG : accessed 29 November 2020), Louis Kreibels, Rock Creek, Otoe, Nebraska, United States; citing ED 137, sheet 6A, line 22, family 116, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 997; FHL microfilm 1,820,997.
- [S28] 1930 U.S. Census.
"United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:X7WJ-B9L : accessed 29 November 2020), Lewy Kreifels, Election Precinct 1 East Longmont, Boulder, Colorado, United States; citing enumeration district (ED) ED 1, sheet 4A, line 32, family 86, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 230; FHL microfilm 2,339,965.
|