↑ "California, County Marriages, 1850-1952," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K8XG-Z36 : 9 March 2021), Joseph F Wilbarn and Annie Butts, 31 Dec 1885; citing Mendocino, California, United States, county courthouses, California; FHL microfilm 1,675,791.
↑ "California Death Index, 1940-1997," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VPWQ-RV8 : 26 November 2014), Colburn in entry for Lena May Knight, 29 Nov 1956; Department of Public Health Services, Sacramento.
↑ "California Death Index, 1905-1939," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKSM-T5G2 : 23 February 2021), Joseph Colburn, 14 Oct 1936; citing 60987, Department of Health Services, Vital Statistics Department, Sacramento; FHL microfilm 1,686,048.
"United States Census, 1880," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:M6G1-TSV : 30 December 2021), Joseph Colburn in household of William Ross, Caspar, Mendocino, California, United States; citing enumeration district , sheet , NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm .
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M9P5-W6Z : accessed 31 December 2021), Joseph F Colburn, Westport Township, Mendocino, California, United States; citing enumeration district (ED) 80, sheet 15B, family 278, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,093.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XCD8-MWY : accessed 31 December 2021), Joseph Colburn, Ten Mile River, Mendocino, California, United States; citing enumeration district (ED) ED 28, sheet 6A, line 22, family 162, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 177; FHL microfilm 2,339,912.