Ulf Merbold and Lodewijk van den Berg, both flew in ?
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.
Koen van de Laak Koen van de Laak (born 3 September 1982, in Vught) is a former Dutch football player. He played for FC Den Bosch, FC Groningen and Ajax Cape Town in South Africa.