1820, age 20, under Henry Houghton - ME, Oxford, Waterford, page 203. "United States Census, 1820," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XHG9-FFN : accessed 14 March 2021), Henry Houghton, Waterford, Oxford, Maine, United States; citing p. 203, NARA microfilm publication M33, (Washington D.C.: National Archives and Records Administration, n.d.), roll 37; FHL microfilm 281,241.
1830, age 30, under Henry Houghton - ME, Oxford, Waterford, page 214. "United States Census, 1830," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XH5P-6H8 : 20 February 2021), Henry Houghton, Waterford, Oxford, Maine, United States; citing 214, NARA microfilm publication M19, (Washington D.C.: National Archives and Records Administration, n.d.), roll 50; FHL microfilm 497,946.