↑ "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M2C3-6DM : accessed 8 May 2023), Clarence E Diffenbaugh in household of John E Diffenbaugh, Flora, Dickinson, Kansas, United States; citing enumeration district (ED) ED 38, sheet 6A, family 123, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 437; FHL microfilm 1,374,450.
↑ "Kansas State Census, 1925", database, FamilySearch (ark:/61903/1:1:QLRG-1T3G : Thu May 04 03:23:06 UTC 2023), Entry for C E Diffenbaugh and Arminta Diffenbaugh, .
↑ "United States Census, 1930," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:X73Y-FM1 : accessed 8 May 2023), Clarence E Dieffanbaugh, Flora, Dickinson, Kansas, United States; citing enumeration district (ED) ED 11, sheet 4B, line 64, family 90, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 700; FHL microfilm 2,340,435.
↑ "United States World War I Draft Registration Cards, 1917-1918", database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:K66Z-99Y : 29 December 2021), Clarence Earl Diffinbaugh, 1917-1918.
↑ "United States, Social Security Numerical Identification Files (NUMIDENT), 1936-2007", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:6KWV-CF25 : 10 February 2023), Clarence E Dieffenbaugh in entry for Elmer Henry Dieffenbaugh, .
↑ "United States, Social Security Numerical Identification Files (NUMIDENT), 1936-2007", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:6KWV-BNLG : 10 February 2023), Clarence E Dieffenbaugh in entry for Lawrence Albert Dieffenbaugh, .
↑ "United States, Social Security Numerical Identification Files (NUMIDENT), 1936-2007", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:6K75-NSR9 : 10 February 2023), Clarence E Dieffenbaugh in entry for Paul Edward Dieffenbaugh, .
↑ "Kansas, Cemetery Abstracts," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QPWZ-LYS9 : 20 December 2018), Clarence E Diffenbough, 1951; citing Burial, Keystone Cemetery, Manchester, Dickinson, Kansas, United States, The Church of Jesus Christ of Latter-day Saints. Family History Department, Salt Lake City, Utah.
↑ Find a Grave, database and images (https://www.findagrave.com/memorial/90424969/clarence-earl-dieffenbaugh: accessed 08 May 2023), memorial page for Clarence Earl Dieffenbaugh (11 Nov 1891–20 Jul 1951), Find a Grave Memorial ID 90424969, citing Keystone Cemetery, Manchester, Dickinson County, Kansas, USA; Maintained by ksrose (contributor 47255712).
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