"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSRK-LB5 : accessed 27 July 2020), Frank A Hitchens in household of William M Mattison, Township 25 N. Range 16 E., Cherokee Nation, Indian Territory, United States; citing enumeration district (ED) 12, sheet 23B, family 31, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,843.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MLQ2-2K1 : accessed 27 July 2020), Frank A Hitchens, Nowata Ward 4, Nowata, Oklahoma, United States; citing enumeration district (ED) ED 131, sheet 27B, family 581, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1265; FHL microfilm 1,375,278.
"Oklahoma, County Marriages, 1890-1995." Database with images. FamilySearch. "Oklahoma, County Marriages, 1890-1995," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVP6-WGPC : 23 March 2020), Frank A Hitchens and Nann Lowery, 15 Jul 1913; citing Oklahoma, various county courthouses, Oklahoma; FHL microfilm.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MC9B-LX7 : accessed 27 July 2020), Frank Auther Hichens, Dallas Precinct 100, Dallas, Texas, United States; citing ED 80, sheet 3A, line 31, family 65, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1794; FHL microfilm 1,821,794.
Find a Grave, database and images (https://www.findagrave.com : accessed 27 July 2020), memorial page for Frank Arthur Hitchens (1886–1960), Find A Grave: Memorial #150159601, citing Memorial Park Cemetery, Tulsa, Tulsa County, Oklahoma, USA ; Maintained by MillieBelle (contributor 46628380) .