"United States Census, 1920," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MF75-XW2 : accessed 03 Nov 2014), Robert Nussbaum in household of Andrew Nussbaum, Carpenter, Jasper, Indiana, United States; citing sheet 2B, family 17, NARA microfilm publication T625, National Archives and Records Administration, Washington D.C.; FHL microfilm 1820440.
"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XHM1-88Q : accessed 03 Nov 2014), Robert N Nussbaum in household of Andrew N Nussbaum, Carpenter, Jasper, Indiana, United States; citing enumeration district (ED) 0003, sheet 4B, family 81, NARA microfilm publication T626, National Archives and Records Administration, Washington D.C.; FHL microfilm 2340329.
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