Mary Margaret Deary, at the age of 98, passed away peacefully at home in the company of her family on Monday, April 23, 2018. A Milton resident, she formerly had resided in Quincy. Ms. Deary was born, raised and educated in Cohasset. For many years she worked at a Corporate job in Boston and held the position of Treasurer at the time of her retirement. She was the beloved daughter the late Edward and Catherine (Mannix) Deary and dear sister of the late Henry and Jeanette Deary. She survived by her caring cousins. Visiting hours are omitted. A Funeral Mass will be celebrated at St. Elizabeth Church, Milton, Friday at 10 am. Burial will follow in St. Paul Cemetery, Hersey St., Hingham.