THORNTON, Mary Claire (Slymon). Of Brookline, passed peacefully surrounded by her loving family on June 4, 2023. Beloved wife of the late Joseph F. Thornton. Loving mother of her six wonderful daughters, Kathy Keeley and her husband Dennis of West Roxbury, Maureen Carroll and her husband Danny of West Yarmouth, Jo-Ann Harrington and her husband Philip of Brookline, Susie O'Donnell and her husband Bill of Norwood, Carolyn Riley and her husband Jack of Norwood, and Michele "Micki" Francis and her husband Jack of Fleming Island, FL. Dear sister of the late Thomas Slymon, Veronica "Ronnie" Meade and John Slymon. Also survived by her 18 adored grandchildren, 9 cherished great grandchildren and many nieces and nephews. Funeral from the Bell-O'Dea Funeral Home, 376 Washington St., Brookline on Friday morning at 10:00 followed by a Funeral Mass in St. Lawrence Church, Chestnut Hill at 11:00. Relatives and friends are kindly invited. Visiting hours in the funeral home on Thursday from 4:00 – 8:00. Interment Mt. Benedict Cemetery. Retired Secretary Brookline School Dept. In lieu of flowers donations in Claire's memory may be made to Accent Care Hospice, 597 Randolph Ave., Milton, MA. 02186