Age 91, of Mt. Washington, on Sunday, February 25, 2018. Wife of the late David Henry Williams; daughter of the late Joseph Basil Coll and Mary Elizabeth Barnes Coll; beloved mother of Donna J. Williams, Nancy McAbee, Daniel M. Williams and the late David M., Robert D., and Thomas R. Williams; sister of the late Arthur H. and William Coll; dear grandmother of Daniel Mahaven (Casey), Patrick Fitzgerald (Marja) and Michelle McAbee; great-grandmother of William Barnes (Beau) Fitzgerald. Friends welcome Tuesday 12:30 - 2:30 p.m. at WM. SLATER & SONS, INC. FUNERAL HOME, 301 Virginia Ave., Mt. Washington 15211 (412-381-3345) where funeral service will follow visitation at 2:30 p.m. Tuesday. In lieu of flowers, memorial donations to the Kane Foundation, 905 Rivermont Dr., Pgh., PA 15207.