John Mike Demmer, 87, 0f Caledonia, died Thursday, July 11, 2019 at his home. He was born May 6, 1932, in Caledonia to Michael and Delia (Elliot) Demmer. John married Margaret Feldmeier, August 10, 1968, at St. Peter's Catholic Church, Hokah,... View Obituary & Service Information