Brought into England during the 11th century by Alan, Earl of Brittany, who participated in William the Conqueror's invasion of England. Led to a large No. of surnames during the Middle Ages. Influenced by actor Alan Ladd when he appeared in "This Gun for Hire" in 1942 and the classic western "Shane," in 1953. Today best-known for Alan Alda who played the irreverent Hawkeye Pierce in the popular television series, "MASH."