Family graveside services will be held Friday, July 6 at 11 a.m. at the Hillside Cemetery in Conrad.
Rose was born on April 23, 1923 in Springfield, Ore., to William and Katherine Tronson.
She met and married Gus Keller in Great Falls. Together, they had two children, Karen Kay (Ron) Bokma and Kip Keller.
Rose was Grand Matron of Easter Star, Masters of Bridge, Sunday School teacher and belonged to the Home Demonstration Club.
She is survived by her son Kip; a longtime companion Chet Heien; a sister Tillie Zimbelman; a brother Herb Tronson; and several grandchildren and great-grandchildren.
She was preceded in death by her husband Gus; parents William and Katherine Tronson; daughter Karen Kay Bokma; grandson Kent Keller; brothers Bill and Roy Tronson; and sisters Edith Denzer King and Myrtle White.