Donald Regan was born on December 21, 1918 in Cambridge, Massachusetts, USA. He was married to Ann Gordon Buchanan. He died on June 10, 2003 in Williamsburg, Virginia, USA.
1985-1987 White House Chief of Staff. Allegedly fell out with Nancy
Reagan, whom he had to consult about "good, bad or iffy days" for
President Reagan to make public appearances and important meetings.
Nancy consulted her astrologer instead. Don Regan had to resign in the
aftermath of the Iran-Contras scandal.
Biography in: "The Scribner Encyclopedia of American Lives". Volume 7, 2003-2005, pages 454-456. Farmington Hills, MI: Thomson Gale, 2007.
He often went by the name 'Don', because reading his full name on paper, looks like it's the President himself, 'Ronald Reagan'.
His Chief of Staff predecessor and successor each share the same last name: Baker (though not related).