"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCZL-V5S : 11 August 2016), Columbus Lucas, Monterey, Owen, Kentucky, United States; citing enumeration district ED 145, sheet 208B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0438; FHL microfilm 1,254,438.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M9WZ-GZ8 : accessed 14 May 2017), Columbus C Lucas, Magisterial District 1, Bullittsville, Burlington Precincts, Boone, Kentucky, United States; citing enumeration district (ED) 1, sheet 3A, family 51, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,507.
"Ohio Deaths, 1908-1953," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X8LV-QS9 : 8 December 2014), Christopher C Lucas, 07 Jun 1920; citing Cincinnati, Hamilton, Ohio, reference fn 42636; FHL microfilm 1,991,135.
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