Diane K. Pease, 83, of rural Keystone, passed away Monday morning, Aug. 3, 2026, at Swiss Village Retirement Facility in Berne. Diane was born in Jackson, Michigan, on Nov. 21, 1942, to Robert Garrett and Eleanor (Jenkins) Garrett-Strahley. She married Carl W. Pease in Bluffton on Aug. 21, 1960. A 1960 graduate of Bluffton High School, Diane worked for the State Highway Department for over 20 years. In addition to her parents and husband, Diane was preceded in death by a grandson, Chris Pease.