Johannes Christoffel Jan Mastenbroek


Johannes Christoffel Jan Mastenbroek was a Dutch football manager who coached the Dutch East Indies in the 1938 FIFA World Cup.
Mastenbroek was born and raised in Dordrecht, son of Klaas Mastenbroek, a tailor, and Goverdina Rackwitsz. In 1924 he married Johanna van den Bovenkamp in Hengelo, at which time he was a school teacher.
He was chairman of the Nederlandsch-Indische Voetbal Unie and vice-president of the Dutch East Indies Olympic Committee.