FAIRMONT — A Celebration of Life Visitation for Michael “Mike” H. Theissen, 77, of Fairmont, Minn., will be from 3 to 5 p.m. on Oct. 24, at the Lakeview Funeral Home in Fairmont. Mike passed away on Monday, Oct. 6, 2025, at Spring Creek Independent and Assisted Living in Armstrong, Iowa. Lakeview Funeral Home is assisting the family with arrangements.