He was born Oct. 20, 1909 in Peoria, Ill. to Ralph and Edith (Mader) Welbourn. He worked as a painting contractor for many years. He moved to Prineville in 1997.
Mr. Welbourn enjoyed repairing old clocks and refinishing furniture.
He was a member of the Loyal Order of the Moose in Illinois.
Survivors include his son, Thomas Welbourn of Bend; daughters, Joan Wayne of Prineville, Nancy McGee of Blaine, Wash., Rosalie Westerlund of Reno, Nev., and Gail Grew of Springfield; 17 grandchildren, 22 great-grandchildren and 13 great-great-grandchildren.
He was preceded in death by six siblings.
Cremation will take place at the Prineville Heritage Crematory under the direction of the Prineville Funeral Home.