The Grammy Award for Song of the Year has been awarded since 1959 to the composer (not the performer) of the song in question. Years reflect the year in which the Grammy Awards were handed out, for music released in the previous year.
... de Kowa[?], actor (+ 1973)
March 6 - Joseph Schmidt[?], tenor (+ 1942)
March 7 - Reinhard Heydrich, Nazi official
March 20 - B. F. Skinner, behavioral psychologist ...