Ellsworth F. Bunker ( May 11 , 1894 -- September 27 , 1984 ) was an American businessman and diplomat ( including being the ambassador to Argentina , Italy , India , Nepal and South Vietnam ) .
Ellsworth F. Bunker ( May 11 , 1894 -- September 27 , 1984 ) was an American businessman and diplomat . He was the ambassador to Argentina , Italy , India , Nepal and South Vietnam ) .