83 Sioux Center, Iowa December 17, 2020 Mariann Haak, 83, of Sioux Center, Iowa, passed away Thursday, Dec. 17, 2020, at her home. Funeral service was Monday Dec. 21, at Bethel Christian Reformed Church, Sioux Center, with interment in Memory Gardens Cemetery, Sioux Center. She is survived by three daughters including Janice (Kevin) Driesen of…