Donna Kay Demski

Donna Kay Demski (nee Manie), of Saint Charles, MO, passed away Tuesday, September 15, 2026 at the age of 71. Cherished daughter of the late Frank and Katherine Manie (nee Keuper).

Devoted mother of Katherine (John) Dukeman, and Frank (Kelly) Demski, dear sister of Frank Manie, loving grandmother of John and Connor Dukeman and Vincent Demski, dear sister in law of John Young. Preceded in death by her sister Barbara Young, her brother Edward Manie, and her sister in law June Manie.

Donna was a devoted educator who made a lasting impact on the lives of those around her. A proud Navy veteran, she was a member of the National Education Association, served as a Boy Scout leader, and coached CYC sports at St. Joseph’s. She was also a faithful member of St. Joseph Catholic Church in Cottleville. Donna was always present and supportive at the sporting events of her children, nieces, and nephews, and she cherished every moment spent with her grandchildren, creating memories they would treasure. An avid St. Louis Cardinals fan, she also enjoyed attending performances at the Fox Theatre. Donna was a major source of love and support for her family, always there when they needed her. She was dearly loved and will be greatly missed by all who knew her.

Memorials may be made in Donna’s name to Wounded Warrior Project.