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In 1938, Van Wyk began studies aimed at a BA-degree at the University of Stellenbosch.
He has lectured or served as a consultant at a number of places including Wesley Theological Seminary, Washington, D.C.; McCormick Theological Seminary, Chicago; Garrett Theological Seminary, Evanston, Illinois; United Theological College of the West Indies, Kingston, Jamaica; University of Debrecen, Debrecen, Hungary; Nanjing Theological Seminary, Nanjing, China; and University of Stellenbosch, Stellenbosch, South Africa.