Donna Kay Demski Obituary
With sadness, we share the passing of Donna Kay Demski of Saint Charles, Missouri. Donna, born on July 17, 1955, passed away on September 15, 2026. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.
She was predeceased by: her parents, Frank Manie and Katherine Manie; her siblings, Barbara Young and Edward Manie; and her sister-in-law June Manie.
She is survived by: her children, Katherine Dukeman (John) and Frank Demski (Kelly); her brother Frank Manie; her grandsons, John, Connor Dukeman and Vincent Demski; and her brother-in-law John Young.
Visitation will be held on Monday, September 21st 2026 from 4:00 PM to 7:00 PM at the Baue Funeral Home - O'Fallon (311 Wood St, O'Fallon, MO 63366). A funeral Mass will be held on Tuesday, September 22nd 2026 at 11:00 AM at the St. Joseph Catholic Church (1355 Motherhead Rd, Cottleville, MO 63304). A graveside service will be held on Tuesday, September 22nd 2026 at 1:30 PM at the Jefferson Barracks National Cemetery (2900 Sheridan Rd, St. Louis, MO 63125).
Memorials may be made in Donna's name to Wounded Warrior Project (https://support.woundedwarriorproject.org). Consider a donation, as requested by the family.
