 After the war he left Doris and in 1950 he married Diana Vaughan, the young editor of "Argosy" magazine, but on 12 May 1951 Diana was drowned, along with Charles Osborne, Bill Brendon and Sam Lee, in a boating accident off the coast of Achill Island in County Mayo, Ireland, while they were making a film about the local shark hunting industry.Filming near the Daisy Rocks, a huge wave estimated to be 27 feet high capsized and sank the lifeboat being used for the filming.Falkus, a powerful swimmer, took command and ensure other members of the party including his wife were equipped with flotation devices; roping them together into a raft, and then set out for help.