"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MHMX-Y93 : 7 September 2017), William H Burke in household of Jacob Burke, Lockport, Carroll, Indiana, United States; citing enumeration district ED 9, sheet 22A, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,267.