Stern, Helen A. (Swartz) on February 21, 2008 of Florida , formerly of Newton Centre. Beloved wife of the late Nathan (Nat) Stern. Devoted mother of Judith and Stanley Dasheff of Newton Centre and Jason and Ileene Stern of New York . Cherished grandmother of the late Dr. Andrew N. Dasheff, Adrienne Yorks and Donald Cohen and Philip, Neil and Alan Stern. Adored great grandmother of Allyson and Brett Yorks and Evan and Ben Cohen. Loving sister of Bernard (Barney) Swartz of Florida and the late Bess Sherman, Hyman Swartz and Harold Swartz. Services have been held. Helen requested remembrances in her memory be made to Dr. Andrew N. Dasheff Memorial Fellowship, Attn: Lynn Hopood, c/o Rensselaer Polytechnic Institute, 110 8th Street , Troy , NY 12180-3590.