"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MQMS-CZ4 : accessed 18 April 2017), Charles C Livingston, Precinct 9 Denver city Ward 11, Arapahoe, Colorado, United States; citing enumeration district (ED) 96, sheet 8B, family 176, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,119.