Possible Clues:

• Richard -, Watership Down author
• Fielding's eponymous parson
• '1776' role
• First vice president to become president
• Don or John
• Portrait on an old 2¢ stamp
• ''--- Rib'' (1949 film)
• The first American ambassador to London, later to become president
• Of untidy appearance
• John ___, first president to live in the White House