Jon Brower Minnoch was the heaviest man in medical history. Minnoch’s top weight in March 1978 was 635 kilograms. When Minnoch was to be hospitalised, it took a dozen firemen and an improvised stretcher to move him from his home to a ferry-boat. When he arrived at the hospital, it took 13 people just to roll him over. Rosalie Bradford is an American lady who held the Guinness World Record as the world’s heaviest woman. Rosalie weighed 1,050 pounds in January 1987, according to the 1994 Guinness Book of World Records.