80, passed away on July 24, 2017, at Kingsley Shores in Lakeville, MN.  Ken was born on May 20, 1937 in Hallock, MN to Melvin and Ella Olson. He married Terry Steele on July 18, 1964 at Eglin Air Force Base in Fort Walton Beach, FL. His career as an anesthetist included practices in Redwood Falls, MN from 1969-1976 and New Ulm, MN from 1976-1996. In 1996, he joined Northwestern Anesthesia Group at Abbott Northwestern in Minneapolis, where he remained until his retirement in December 2010. Ken was incredibly passionate about his work in anesthesiology.  Ken is survived by his wife, Terry; his son and daughter-in-law, Christian and Emily Olson; his son, Erik Olson; his daughter-in-law, Sandy Parker; his daughter, Laura Hudson; his granddaughters, Lauren and Sienna Olson, Kirsten Parker and Jenna Hudson; and his sister and brother-in-law, Karen and Dr. Paul Hepperly. He is preceded in death by parents, Melvin and Ella Olson; mother and father-in-law, Matthew B. and Rena Steele; sister, Melva Faye Olson; and son, Clayton Parker. A funeral service will be held at 3pm on Friday July 28, 2017 at Henry W. Anderson Mortuary in Apple Valley, 14850 Garrett Ave.  Visitation one hour prior.  Private interment at Fort Snelling National Cemetery.  In lieu of flowers, memorials preferred to St. Croix Hospice, 12805 Hwy 55, Suite 315, Plymouth, MN 55441.