Mary Margaret Mueller, 78, Fortified with the sacraments of Holy Mother Church on Monday, June 19, 2023. Beloved wife of Willam Fred Otto Mueller. Loving mother of Pam (John) Kremer, Tim (Stephanie) Mueller, Tom (Lisa) Mueller and James Mueller. Cherished grandmother of Nick, Zach, Emily, Nathan, Sarah, Keirsten, Ember, Jasimine and Laila. Great-grandmother of Lennox, Maverick and Charleigh. Dear sister of William (Paula) Pisel and Elizabeth Hubler. Sister-in-law of the late Glen Hubler. Wife, mother, grandmother, sister, aunt, cousin and friend. Visitation will be on Wednesday, June 21, 2023 at Jay B. Smith Funeral Home, 777 Oakwood Dr., Fenton, MO from 4:00pm to 8:00pm. Funeral Mass at 10:00am on Friday, June 23 2023 at St. Paul Catholic Church, 15 Forest Knoll Dr., Fenton, MO. Interment St. Trinity Lutheran Cemetery. In lieu of flower memorial donations to the Alzheimer's Association would be appreciated.