"United States Census, 1880," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MHXC-JTG : August 26, 2017), Norvall Hassam in household of Fred F Hassam, Hyde Park, Norfolk, Massachusetts, United States; citing enumeration district ED 518, sheet 614D, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0548; FHL microfilm 1,254,548.