Ruby Isabelle Thiessen was born June 24, 1924, in Cordell, Oklahoma to Arthur Justin and Rufina Frances (Sandefer) Newton and was called home to her beloved Savior on Tuesday, January 16, 2018, at Maple Lawn Manor in Hydro, Oklahoma, at the age of 93 years, 6 months, and 22 days.

Ruby was raised and attended school in Cordell, Oklahoma. On November 15, 1942, she married Jesse Louis Bowen in Cordell. Ruby worked as a Nanny for many years before becoming a CNA, Certified Nursing Assistant.    She worked as a nurse's aide at the Cordell Memorial Hospital for 15 years and assisted with numerous newborns during this time. On July 7, 1978, Ruby married Roy Thiessen in Mustang, Oklahoma that made them a combined family of eleven children, and made their home on the farm near Colony, Oklahoma. They lived in Cordell until 1985, when they moved to Eakly, Oklahoma. Ruby enjoyed embroidering, reading, attending church, needlepoint, painting, cats, and collecting owls. She will be remembered as a "Great Prayer Warrior" and Grandma Ruby to Eakly or Grandma "Uby" to many of the grand and great-grandchildren. Memorials may be made to the Gideon's Bible or to the Assembly of God – Missions Fund.

Ruby is survived by eleven children, James Bowen and wife, Jane of Moore, Oklahoma, Teddy Bowen and wife, Carol of Willow Park, Texas, Marsha Harty of Lawton, Oklahoma, Lee Fite of Duncan, Oklahoma, Kaye Whitehead of Oklahoma City, Oklahoma, Dean Thiessen and wife, Linda of Colony, Oklahoma, Ron Thiessen and wife, Ruth of Washita, Oklahoma, Donna Pearcy and husband, Gale of Colony, Oklahoma, Larry Thiessen and wife, Paula of Eakly, Oklahoma, Gary Thiessen of Joplin, Missouri, and Troy Thiessen and wife, Sandra of Joplin, Missouri; one sister, Norma Walker of El Reno, Oklahoma; twenty-seven grandchildren; fifty-two great-grandchildren; and thirteen great-great-grandchildren. She was preceded in death by her parents; husband, Roy Thiessen; four brothers, Al, Leo, A.J. and Jesse; one sister, Esther; and two granddaughters, Julie Harty and Dana Clark.