Edward T. 1904-1964United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:X9S4-Z97 : accessed 28 April 2022), Edward T Coopman in household of Peter Coopman, Little Suamico, Oconto, Wisconsin, United States; citing enumeration district (ED) ED 15, sheet 1A, line 43, family 10, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2602; FHL microfilm 2,342,336.
United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:X9S4-Z97 : accessed 28 April 2022), Edward T Coopman in household of Peter Coopman, Little Suamico, Oconto, Wisconsin, United States; citing enumeration district (ED) ED 15, sheet 1A, line 43, family 10, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 2602; FHL microfilm 2,342,336.