Mary Koch Vinz, 93, of Stickney, SD, passed away peacefully in her sleep Thursday, January 9, 2025 at her daughter’s home. Funeral Mass will be at 10:30 AM Saturday, January 18, at St. John’s Catholic Church in Plankinton. Burial will be at St. Mary’s Catholic Cemetery in Stickney. Visitation will be Friday from 5-7:00 PM at St. John’s Catholic Church with a 6:30 PM prayer service. Arrangements by Bittner Funeral Chapel.