Rosenberg, Rosabelle “Rose” (Ostroff), age 96, of Newton, MA passed away March 5, 2023. Born in Uniontown, PA to the late Edward and Dora (Kramer) Ostroff. Beloved wife of the late Udel K. Rosenberg and dear companion of the late Sampson Grunes. Mother of Ira J. and Mimi Rosenberg, and the late Ellen Ann Rosenberg. Grandmother of Claire, Aaron, Jonathan, and Roni Rosenberg. Sister of the late Edith Tobias, the late Jeannette Steinberg, and the late Morris Ostroff. Brilliant, beautiful, and overly modest, she sang leads in school musicals, read and typed at extraordinary speeds, and did the NY Times crosswords in pen. She served as president of the Women’s division of the Multiple Sclerosis Society, and remained as secretary of the board of the Mass. Division of the National society for years after her term concurrent with the presidency ended; she was also honored as volunteer of the year multiple times. Services at Sharon Memorial Park, Wednesday, March 8, 2023 at 1:45 pm. Donations may be made to the American Heart Association, 300 5th Ave., Suite 6, Waltham, MA 02451.