• [S2] Oklahoma Department of Health, birth certificate; Department of Health, Oklahoma City.
  • [S3] Oklahoma Department of Health, affadavit for correction of birth record; Department of Health, Oklahoma City.
  • [S105] Social Security Card Collection, Vandegrift Family Archive; privately held by Eric Vandegrift, Seattle, Washington, 2025.
  • [S119] South Whidbey Record (Whidbey Island, Washington).
  • [S129] Kansas Department of Health and Environment, birth certificate; Department of Health and Environment, Topeka.
  • [S136] Texas Bureau of Vital Statistics, death certificate; Department of Health, Austin, Texas.
  • [S150] A. E. Peter Vandegrift (Langley, Washington), interview by Eric Vandegrift, 23 October 2009; audio file and transcript privately held by interviewer, Seattle, Washington, 2009.
  • [S263] Nowata Memorial Cemetery (Nowata, Nowata County, Oklahoma).
  • [S290] Leroy Vandegrift, funeral register, burial date 19 September 1944; 1944, p. 103; Funeral Registers, Benjamin Funeral Home Archives; Benjamin Funeral Home, Nowata, Oklahoma.
  • [S297] Washington Center for Health Statistics, death certificate; Washington Department of Health, Olympia.
  • [S298] Washington Center for Health Statistics, amended death certificate; Washington Department of Health, Olympia.
  • [S299] A.E. Peter Vandegrift, "OBIT ideas from Peter Vandegrift," ms, unpaginated, 29 Jan 1995 (Langley, Washington); privately held by Eric Vandegrift, Seattle, Washington, 2011. Original provided by author.
  • [S310] Nowata County, Oklahoma, Marriage Records; Nowata County Courthouse, Nowata, Oklahoma.
  • [S342] Peter and Clara A. Vandegrift, "Field Notes 1988," ms, 1988 (Clinton, Washington); privately held by Eric Vandegrift, Seattle, Washington, 1988. Photocopy of original provided by authors.
  • [S343] Peter and Clara A. Vandegrift, "Fairview Cemetery headstone inscriptions," ms, 1988 (Clinton, Washington); privately held by Eric Vandegrift, Seattle, Washington, 1988. Photocopy of original provided by authors.
  • [S355] Donation of body of Zella Vandegrift, in Vandegrift Family Archive, 10 Sep 1980; privately held by Eric Vandegrift, Seattle, Washington, 2009. Copy of original found in Zella's personal files after her death.
  • [S369] Peter Vandegrift, "Resume," typescript, 29 Jan 1995 (Langley, Washington); privately held by Eric Vandegrift, Seattle, Washington, 1995. Original provided by author.
  • [S388] Zella Vandegrift, Last Will and Testament, 22 September 1980; copy; privately held by Vandegrift Family Collection, Seattle, Washington, 2006.
  • [S431] 1920 U.S. census, Neosho County, Kansas; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T625.
  • [S434] Zella (Downey) Vandegrift (Langley, Washington) to "Just tear this after reading" [Marie (Downey) Eicher], letter, ca. 1987; privately held by Eric K. Vandegrift, Seattle, Washington, 2012. Rembrances.
  • [S461] 1930 U.S. census, Neosho County, Kansas; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T626.
  • [S467] A.E. Peter Vandegrift, "Remembrances," ms, unpaginated, 29 Jan 1995 (Langley, Washington); privately held by Eric Vandegrift, Seattle, Washington, 1995. Original provided by Vandegrift.
  • [S478] Zella M. Vandegrift, grandmother of interviewer, (Langley, Washington), interview by Eric Vandegrift, various dates; recollections privately held by interviewer, Seattle, Washington, 1996.
  • [S587] 1930 U.S. census, Washington County, Oklahoma; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T626.
  • [S589] 1910 U.S. census, Washington County, Oklahoma; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T624.
  • [S592] 1910 U.S. census, Nowata County, Oklahoma; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T624.
  • [S720] 1940 U.S. census, Neosho County, Kansas; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T627.
  • [S764] 1940 U.S. census, Champaign County, Illinois; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T627.
  • [S779] "United States World War I Draft Registration Cards, 1917-1918," database with images, FamilySearch (https://www.familysearch.org|| ||/search/collection/1968530).
  • [S986] Ancestry.com. U.S., Social Security Death Index, 1935-2014 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2014. (https://www.ancestry.com/search/collections/3693/).
  • [S1024] 1940 U.S. census, Oklahoma County, Oklahoma; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T627.
  • [S1055] University of Oklahoma Electrical Meter Repair School Class of ca. 1922 photo, Original photo provided by his son Peter Vandegrift, in Vandegrift Family Archive, ca. 1922; privately held by Eric Vandegrift, Seattle, Washington, 2012.
  • [S1209] "Washington, County Marriages, 1855-2008," database, FamilySearch (https://www.familysearch.org/search/collection/1534448).
  • [S1222] "Texas Death Index, 1903-2000," database, FamilySearch (https://www.familysearch.org/search/collection/1949337).
  • [S1483] "Oklahoma County Marriages , 1890-1995," database with images, FamilySearch (https://www.familysearch.org|| ||/search/collection/1709399).
  • [S1969] 1940 U.S. census, Washington County, Oklahoma; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T627.
  • [S2223] "Oklahoma, School Records, 1895-1936," database with images, FamilySearch (https://www.familysearch.org/search/collection/1926701).
  • [S2686] Ancestry.com. U.S., World War I Draft Registration Cards, 1917-1918 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2005. (https://www.ancestry.com/search/collections/6482/).
  • [S2746] 1940 U.S. census, Palm Beach County, Florida; digital image, Ancestry.com (http://ancestry.com; citing National Archives and Records Administration microfilm T627.
  • [S2792] The Nowata Weekly Star-Times (Nowata, Oklahoma); digital image, Newspapers.com (www.newspapers.com).
  • [S2822] Nowata Daily Star (Nowata, Oklahoma); digital image, Newspapers.com (www.newspapers.com).
  • [S2829] DD 220, Active Duty Report,.
  • [S3115] Decree of Divorce, Zella Vandegrift, plaintiff, vs. Leroy Vandegrift, defendant, in Vandegrift Family Archive, 15 Mar 1928; privately held by Eric Vandegrift, Seattle, Washington, 2022. Certified copy provided by their son Peter Vandegrift.
  • [S3340] WD AGO Form 53-55, Enlisted Record and Report of Separation, Honorable Discharge,.
  • [S3341] Authorization for Issuance of Awards, National Personnel Records Center; Military Personnel Records, DA Form 1577; Vandegrift Family Archives, Seattle, Washington.
  • [S3343] A. E. Peter Vandegrift (Kobe, Japan) to "Dear Marie" [Marie J Downey], letter, 26 Dec 1945; privately held by Eric Vandegrift, Seattle, Washington, 2022.
  • [S3346] Photo Identification Collection, Vandegrift Family Archive; privately held by Eric Vandegrift, Seattle, Washington, 2025.
  • [S3355] Form 638, Discharge From Draft,.
  • [S3357] WD AGO Form 100, Separation Qualification Record,.
  • [S3812] Tulsa World (Tulsa, Oklahoma); digital image, Newspapers.com (https://www.newspapers.com/).