Gilbert Thiessen, 76, passed away November 25, 2014, peacefully at home in Norman, Oklahoma. He was born September 12, 1938, in Antwerp, Belgium, and came to Cordell, Oklahoma, in his teens with his step-father, Charles Thiessen, and mother, Maria Thiessen (Jacqmin), who preceded him in death. Gilbert’s father, Pietre VanAgtmael, also preceded him in death. He graduated from Cloud Cheif High School and attended Southwestern Oklahoma State University for a time. Gilbert joined the Army and served in Korea for several years. After he returned, he worked for the United States Postal Service in Cordell, and later in Norman, Oklahoma, where he retired. He is survived by his wife, Marilyn; son and daughter-inlaw, Mike and Mary Thiessen; daughter, Barbara; brother, sister- in-law and nephew, Ken, Toni and Josh Thiessen; and five grandchildren. He is also survived by Champ and Lucky of the home.