 Weinberg remained active in retirement . In 1992 he was named chairman of the International Friendship Bell Committee , which arranged for the installation of a Japanese bell in Oak Ridge . He also called for strengthening of the International Atomic Energy Agency and systems to defend against nuclear weapons . His first wife , Margaret , died in 1969 . He later married a stock broker , Genevieve DePersio , who died in 2004 . His son David died in 2003 . Weinberg died at his home in Oak Ridge on October 18 , 2006 . He was survived by his other son , Richard , and sister Fay Goleman . 
