オランダ領ニューギニア
He obtained his PhD on anthropological fieldwork among the Mimika in the Netherlands New Guinea at Leiden in 1955. He was a research officer (gouvernmentsethnoloog) at the Bureau for Native Affairs (Kantoor voor Bevolkingszaken) in Hollandia (now Jayapura), Netherlands New Guinea, 1951–60; served as Acting Advisor for Native Affairs in 1960–1961, as Advisor for Native Affairs in 1962.