Marilyn Kateri "Lyn" of Mendon, in Wellesley Hills, on November 1, 2018. Beloved daughter of the late James & Alice L. (McNamara) Walton. Sister of Lenore K. McCormack, Carol A. Frohboese and her husband Ernest, the late Donald Walton, DVM, Attorney Robert Walton and James Walton. Sister-in-law of the late John McCormack. Also survived by many nieces, nephews and cousins as well as her special friends, Sister Patricia McCarthy, SCH, Lee Goodnow and members of the Sisters of Charity. Lyn graduated from the Academy of the Assumption, Mount Saint Vincent University, Halifax, Nova Scotia and Boston College Graduate School. Lyn was a teacher and resident of Mendon, MA. Visiting hours at Mt. St. Vincent, 125 Oakland St., Wellesley, on Tuesday, November 6 from 9:30 - 10:15 am, followed by a prayer service at 10:15. Funeral Mass at 10:45 am. Relatives and friends are invited. Interment will be private. In lieu of flowers, donations may be made to Sisters of Charity, Mt. St. Vincent Community, 125 Oakland St., Wellesley, MA 02481.