Де Йонг
De Jong was born in the village of Wierum in the province of Friesland, Netherlands. (The correct Dutch and Frisian spelling of his surname is 'de Jong' when preceded by his first name or initials, and 'De Jong' when not.) The family emigrated to the United States in 1914. De Jong attended Dutch Calvinist secondary schools and Calvin College in Grand Rapids, Michigan, and entered the University of Chicago, but left without graduating.