"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/JR26-DTP : 20 May 2014), Edward R Ouderkirk, 01 Jun 2000; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
Find A Grave, database and images (findagrave.com : accessed 30 March 2018), memorial page for Edward Roy Ouderkirk (2 Dec 1945–1 Jun 2000), Find A Grave: Memorial #152718381, citing Larkin Township Cemetery, Larkin, Midland County, Michigan, USA ; Maintained by Greg Clark (contributor 47576779).
U.S., Department of Veterans Affairs BIRLS Death File, 1850-2010 [database on-line : accessed 30 March 2018]. Provo, UT, USA: Ancestry.com Operations, Inc., 2011. Edward Ouderkirk, 2 Dec 1945-1 Jun 2000; 18 Jul 1966-19 Apr 1968. Beneficiary Identification Records Locator Subsystem (BIRLS) Death File. Washington, D.C.: U.S. Department of Veterans Affairs.
"United States, GenealogyBank Obituaries, 1980-2014," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/QK5T-3N97 : accessed 31 March 2018), Edward Roy Ouderkirk in entry for Thelma D Or Sally Ouderkirk, Michigan, United States, 21 Sep 2007; from "Recent Newspaper Obituaries (1977 - Today)," database, GenealogyBank.com (http://www.genealogybank.com : 2014); citing Midland Daily News, born-digital text.
It may be possible to confirm family relationships with Edward by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Edward: