William Cashman was born on 6 March 1941 in New York City, New York, USA. William was married to Margaret. William died on 11 September 2001 in Shanksville, Pennsylvania, USA.
Passenger on the ill-fated United Airlines flight 93 that was hijacked by terrorists on September 11, 2001. He was traveling with his best friend, Patrick Driscoll on a trip to California to go hiking.