DALTON-MARY E. of Islip (formerly of Oyster Bay), on June 13, 2019. Beloved wife of the late Thomas F. Loving mother of Beth Dalton- Costello (Kevin), and Pamela Dalton. Cherished grandmother of Caitlin, Rosemary, Megan, and Kelsey. Friends may call Friday 2-4 and 7-9 P.M. at Thomas F. Dalton Funeral Home, 47 Jerusalem Avenue, Hicksville (corner of W. Marie Street). Prayer Service Friday 8:00 PM. Funeral Saturday 10:00 A.M. Interment Holy Rood Cemetery. In lieu of flowers, donations in Mary’s memory to Friends of the Bay,123 South Street, Unit 209, Oyster Bay, NY 11771.