The award was given to the best play, musical or non-musical, which had already appeared on Broadway in a previous production.
No award was presented in 1979.
... Balanchine, choreographer (+ 1983) January 26 - Ancel Keys, scientist February 1 - S. J. Perelman[?], humorist, author February 4 - MacKinlay Kantor[?], historian (+ ...