"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M9N4-84R : accessed 05 Jun 2014), James Appledorn in household of Garry De Groot, District 3 Paterson city Ward 1, Passaic, New Jersey, United States; citing sheet 8A, family 162, NARA microfilm publication T623, FHL microfilm 1240990.
"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X4FL-FS7 : accessed 05 Jun 2014), James Appeldoorn in household of Garry Degroot, Prospect Park, Passaic, New Jersey, United States; citing enumeration district (ED) 0175, sheet 14B, family 308, NARA microfilm publication T626, roll 1382.