Susan A. Farrell, 66, of Trumbull, died Sept. 21. She was the wife of Ronald G. Farrell. Born in Brooklyn, N.Y., she was the daughter of the late Lester and Minerva (Pashman) Welles. In addition to her husband, she is survived by her daughters, Loren Puffer and her husband Brad of Framingham, Mass., and Dana Farrell of Alexandria, Va.; her grandchildren, Maya and Claire Puffer; her brother Marvin Welles and his wife Donna of Florida; her sister-in-law Marge Sherman of Stratford,.