Allen was born January 8th, 1933 in Halstad, Minnesota to Lillian (Mjolsness) and Albert L Benbo. He was the oldest of ten children. He spent his younger years growing up in Minnesota, North Dakota and Montana before settling in North Dakota. He joined the US Air Force when he was 17 and received his GED and went on to Baking School while serving his country. He managed and owned several businesses in various states throughout his life. His last and most rewarding job was cooking for the young men of Delta Sigma Phi Fraternity, Gamma Upsilon Chapter where he was made an honorary member.

He is survived by two sisters, Ardell L Benbo and Molly L Thesing of Rapid City, two half sisters, Roseanne Pearson and Mona Woronik of Montana, one uncle George Benbow of Blackfoot, Idaho, numerous nieces and nephews, and special friends, John and Susan Stowe.

He was preceded in death by his Mother, Father, five brothers and two sisters.

Allen was loved and missed by all.