"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZFS-2XW : accessed 10 July 2015), Herbert S Mekeel in household of Isaac Swart, Maryland, Otsego, New York, United States; citing enumeration district 102, sheet 168B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0915; FHL microfilm 1,254,915.