Morris Jeppson was born on 23 June 1922 in Logan, Utah, USA. He was married to Molly Hussey and Marge Jeppson. He died on 30 March 2010 in Las Vegas, Nevada, USA.
Then-2nd Lieutenant Jeppson and then-navy-Captain William Parsons were the weaponeers who armed the atomic bomb that was dropped on Hiroshima, Japan in 1945.