​From Wikipedia, the free encyclopedia.   Roy Richard Grinker (born 1961) is an author and Professor of Anthropology, International Affairs, and Human Sciences at The George Washington University. Grinker is an authority on North and South Korean relations. He also spent two years living with the Lese farmers and the Efé pygmies in the northeastern Democratic Republic of the Congo as a Fulbright scholar, and has conducted epidemiological research on autism in Korea. Description above from the Wikipedia article Roy Richard Grinker, licensed under CC-BY-SA, full list of contributors on Wikipedia.