"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6S5-3LD : 14 July 2016), Samuel P Brown in household of Henry Brown, Liberty, Orangeburg, South Carolina, United States; citing enumeration district ED 144, sheet 181B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 1237; FHL microfilm 1,255,237.