WEST MILFORD After many years of teaching in the West Milford Township district, Sandra Blumenthal, third grade teacher at Maple Road School, will be retiring at the end of the school year. The school is putting together a farewell book for her, and would like former students to submit their memories of a year with Mrs. Blumenthal. Notes and letters should be addressed to: Ginger Spinelli, Maple Road School, 36 Maple Road, West Milford, N.J. 07480.