William Stanley Rubin (1927 – 2006) American art scholar.

From 1968 to 1988, he was a curator and director of the painting and sculpture department at the Museum of Modern Art, located in New York City, New York. He played a key role in building the museum's collection of abstract-expressionism works and organized many exhibitions, including Dada, Surrealism, and Their Heritage (1968), Primitivism in 20th Century Art: Affinity of the Tribal and the Modern (1984), and Picasso and Braque: Pioneering Cubism (1989).

Source: Wikipedia