"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MJH6-DCP : accessed 30 Sep 2012), Otto Sievers in household of William F Sievers, Olive Township Precinct One & Two, Madison, Illinois; citing enumeration district (ED) , sheet 15A, family 112, NARA microfilm publication T625, FHL microfilm 1820390.

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  • Occupancy/Contact: primary residence Otto A Sievers