Served as a radio operator in the campaigns on Guadalcanal and Tarawa, while in the Marines.
Was friends with author Howard Bloom. He endorsed Howards' book The Lucifer Principle: A Scientific Expedition into the Forces of History, calling it "An act of astonishing intellectual courage.".
Two children with Jill Peabody: Rachael and Conor.
MGM announced it planned to produce Uris' best seller, "Armageddon" during their 40th Anniversary celebration in 1964 but the project was quietly shelved during a period of studio belt-tightening the following year.
Three children with Betty Beck: Karen, Mark and Michael.