Frank Arthur "Bones" Jenner (surname often misspelled Genor; 2 November 1903 – 8 May 1977) was an Australian evangelist. His signature approach to evangelism was to ask people on George Street, Sydney, "If you died within 24 hours, where would you be in eternity? Heaven or hell?" Born and raised in England, he contracted African trypanosomiasis at the age of twelve and suffered from narcolepsy for the rest of his life. After some time, he joined the Royal Navy, but deserted in New York and joined the United States Navy. When he was 24, he deserted again while in Australia. He subsequently worked for the Royal Australian Navy until he bought his way out in 1937.