The Grammy Hall of Fame Award is a special Grammy award established in 1973 to honor recordings that are at least twenty-five years old and that have "qualitative or historical significance".
... producer (+ 1985)
April 3 - Sally Rand[?], dancer (+ 1979)
April 7 - Ralph Bunche[?], diplomat, winner of the Nobel Peace Prize
April 16 - Fifi D'Orsay, ...