Gari Ledyard was King Sejong Professor Emeritus of Korean Studies and Director Emeritus of the Center for Korean Research. He is the author of The Dutch Came to Korea (Royal AsiaticSociety, 1971), The Korean Language Reform of 1446 (Sin’gu Munhwasa, Seoul, 1998), “Cartography in Korea,” a book-length monograph with over sixty illustrations in The History of Cartography, Vol 2, Part 2 (Univ. of Chicago Press, 1994) and many other monographs, articles, and reviews related to Korean and East Asian history. He was Chairman of the Department of East Asian Languages and Cultures from 1980-1983, and was the founder of the Center for Korean Research in 1992. A full obituary is available here.