Hailed as the father of the modern Frisbee, Mr Headrick also invented "disc golf" - a Frisbeebased sport played by millions that involves throwing the discs into metal cages. It was at the sport's world championships in Miami last month that he fell ill, suffering two strokes. He returned home to California where he died in his sleep. He is survived by his wife, Farina, three sons, a daughter and 11 grandchildren - all of whom play Frisbee.