"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKW1-11N : accessed 18 April 2017), Charles G Livingston, Denver Ward 12, Denver, Colorado, United States; citing enumeration district (ED) ED 156, sheet 4A, family 79, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 116; FHL microfilm 1,374,129.