Delwin D. Olson, 56, Killdeer, died of accidental drowning on Tuesday, July 18, 2023 north of Dunn Center. Delwin’s Funeral Service will be at 10 a.m., Thursday, July 27, 2023 at Invitation Hill Seventh-day Adventist Church, Dickinson. Interment will take place at Peace Lutheran Cemetery, Killdeer. Visitation will be from 5 p.m. to 7 p.m. on Wednesday at Ladbury Funeral Service, Dickinson.