Marilyn was born in Cherokee, to Eddie and Effie (Carlson) Halstrom. She was a graduate of the University of South Dakota in Business Administration.
She was active in both her church and the community, but known best for her time spent working and catering for Mary's Restaurant, where she made many friends and was much loved.
Marilyn is survived by her two sons and daughters-in-law, Robert and Tonya Gramann of Gray Court, S.C. and Todd and Margaret Gramann of Parker, Colo.; two grandchildren, Hannah Gramann and Brock Gramann; and a large extended family of friends and relatives.
In lieu of flowers, memorials may be made to Messiah Lutheran Church, 1100 Log Shoals Rd., Mauldin, SC 29662.