Joseph Mammon Z"L passed away on 22 Elul 5771, Wednesday morning September 21st 2011, nine days before his 87th birthday, from complications brought about about a rare degenerative brain disease known as Progressive Nuclear Palsy. He had been diagnosed after turning 80. He initially was still active and my parents were still able to travel, although my mother had to be with him constantly. After a few years of deteriorating health and with my mother constantly by his side he passed away. He is buried in Har HaMenuchot Cemetery in Jerusalem, the city of his birth.