John Guillebaud is Emeritus Professor of Family Planning and Reproductive Health at University College London. He was born in Burundi and brought up in Rwanda, Uganda, Kenya, and Britain.
He qualified as a medical doctor from University of Cambridge in 1964.
John Henry Gray was an American economist. He was a professor of economics at Northwestern University, Carleton College, and the University of Minnesota. In 1914, he served as president of the American Economic Association.
John Harriss Langbein is an American legal scholar who serves as the Sterling Professor emeritus of Law and Legal History at Yale University. He is an expert in the fields of trusts and estates, comparative law, and Anglo-American legal history.
John H. Noble was an American survivor of the Soviet Gulag system, who wrote two books which described his experiences in it after he was permitted to leave the Soviet Union and return to the United States.
John H. Walton is an Old Testament scholar and Professor Emeritus at Wheaton College. He was a professor at Moody Bible Institute for 20 years. He specializes in the Ancient Near Eastern backgrounds of the Old Testament, especially Genesis and its creation account, as well as interpretation of Job.
