Curtis Raymond Flak, 87, of Hesper, died Wednesday, June 26, 2013, at St. Mary's Hospital in Rochester, Minn. A service to celebrate the life of Curtis Flak is at the Hesper Lutheran Church, Hesper, with Pastor Matthew Larson officiating. Visitation is Sunday, June 30, at noon and is followed by the service at 2 pm. Burial is in the Hesper Lutheran Church Cemetery.