Elizabeth L. Katz, 81, of Canton, Mass., formerly of Thompsonville and West Hartford, died May 11. She was the widow of Howard Katz. Raised in Brooklyn, N.Y., she was the daughter of Margaret Bock Lewis and Robert Lewis. She is survived by her children, Nancy Katz of Brookline, Mass., and Robert Katz and his partner Lori Todd of Chapel Hill, N.C.; and her granddaughter Genna Bromley of Brookline, Mass.