Who flew on a 1985 Space Shuttle "Challenger" mission as a Payload Specialist, Claude Nicollier or  Lodewijk van den Berg?
Lodewijk van den Berg Lodewijk van den Berg (] ; born March 24, 1932) is a Dutch American chemical engineer, specializing in crystal growth, who flew on a 1985 Space Shuttle "Challenger" mission as a Payload Specialist.
Anthony W. England Anthony Wayne England (born May 15, 1942), better known as Tony England, is an American, former NASA astronaut. Selected in 1967, England was among a group of astronauts who served as backups during the Apollo and Skylab programs. Like most others in his class, he flew during the Space Shuttle program, serving as a mission specialist on STS-51F in 1985. He has logged more than 3,000 hours of flying time and 188 hours in space.