1952, he married Darlene Frick.-- Darlene passed away in 1973.
preceded in death by his parents, John "Bus" Fairbairn and Louise Fairbairn; sister Billie McDonald; and granddaughter, Shay Youngblood.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K99K-WSM : accessed 14 June 2016), Donald F Fairbairn in household of John D Fairbairn, Ward 3, Aberdeen, Aberdeen Election Precinct 5, Grays Harbor, Washington, United States; citing enumeration district (ED) 14-12, sheet 1A, family 1, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 4340.
It may be possible to confirm family relationships with Donald by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree: