John L. Marion is an American auctioneer and philanthropist. He served as the Chairman of Sotheby's (NYSE: BID) from 1975 to 1994.John L. Marion was born in Gardiner, New York. His father, Louis J. Marion, was the President of Parke-Bernet Galleries. He graduated from Fordham University in New York City in 1956. He then served as a lieutenant in the United States Navy. He went on to study the decorative arts at Columbia University.He started his career as an auctioneer at Sotheby's in 1960. He became President in 1972 and Chairman in 1975. During the course of his career, he oversaw the sale of Irises by Vincent van Gogh for US$53.9 million, Yo Picasso for US$47.9 million and Au Lapin Agile for US$40.7 million (both of which by Pablo Picasso), as well as Interchange by Willem de Kooning for US$20.7 million, and False Start for US$17 million and Two Flags US$12.1 million (both of which are by Jasper Johns). Wikipedia