Mr. Springer was 85 and began his professional public relations career in 1948 when he started with RKO Pictures as head of magazine publicity. After a similar job with Twentieth Century-Fox, he opened his own business in the 1950s, first in partnership with Arthur P. Jacobs, then, after a brief time as head of Rogers & Cowan's New York office, he opened John Springer Associates. He would go on to represent a who's who of American entertainment in the second half of the 20th century.