William A. Kostelecky, 78, Richardton, died Monday, October 4, 2021 at St. Benedict’s Health Center, Dickinson. A Liturgy of Word Service will be at 9:30 a.m., Tuesday, October 12, 2021 at St. Mary’s Catholic Church, Richardton with Deacon Robert Bohn presiding. Interment will follow at St. Mary’s Cemetery. Visitation will be on Monday from 5 p.m. to 7 p.m. with a rosary and vigil at 7 p.m. at Ladbury Funeral Service with Deacon Robert Bohn presiding.