How Did Stephen E. Ambrose Die?

Stephen Edward Ambrose was an American historian and author whose work focused particularly on World War II, the American West, and the lives of U.S. presidents Dwight D. Eisenhower and Richard Nixon. He taught history from 1960 until his retirement in 1995 and was a member of the University of New Orleans faculty from 1971, becoming Boyd Professor of History in 1989.