Which U.S. aircraft businessman took the place of Philip G. Johnson following his death?
William McPherson Allen William McPherson "Bill" Allen (September 1, 1900 – October 28, 1985) was a U.S. aircraft businessman.
Ronald Sugar Ronald D. Sugar (born July 30, 1948) is an American business executive. He served as the chairman of the board and chief executive officer of the Northrop Grumman Corporation from 2003 to 2009.