Mary J. Prevost, age 89, of Warren, Michigan passed away on Monday, February 6, 2023. Beloved wife of the late Harry Nelson Prevost; cherished mother of the late Nelson Harry Prevost, Mary (Jan Eisenhart) Prevost, and Debbie (Bill) Gates; loving grandmother of James (Angela) and Brittany; and dear great-grandmother of Christian, Caden, and Kehlani. Mary was also survived by many nieces and nephews.