More Notable Birthdays on December 27: 1975 - Heather O'Rourke, born in San Diego, California, actress, Happy Days, Poltergeist 1944 - Bob Brown, Australian Politician 1943 - Cokie Roberts, newscaster, ABC-TV 1901 - Marlene Dietrich, Berlin Germany, singer and actress, Blue Angel 1822 - Louis Pasteur, Dole France, bacteriologist, pasturization