Norma J. (Blatchford) Maffeo, 78, of Haverhill, wife of Robert D. Maffeo, died Dec. 19, at Holy Family Hospital, Methuen, with her family by her side. Born in Newburyport, she was the daughter of the late Frank and Thelma (Gavin) Blatchford. She was raised and educated in the Hampstead, N.H., school