|1906||Born April 30, New York.|
|1927||Columbia University: awarded Bachelor of Science Degree, New York.|
Studies sculpture at the Beaux Art Institute of Design, New York.
|1930||Studies at National Academy of Design, New York.|
|1936||Participates in First American Artists Congress. Joins the Artists Union.|
|1937||Midtown Galleries, New York.|
Federation of Modern Painters and Sculptors, as splinter group from American
(with Meyer Schapiro, Adolph Gottlieb, Mark Rothko, Ilya Bolotowsky, Bradley Walker Tomlin, David Smith and others).
|1941||Elected to executive board, Sculptors Guild (along with Chaim Gross, Robert Laurent and Hugo Robus).|
|1950||Joins The Irascibles in protest against juried painting exhibition at the Metropolitan Museum of Art. Charter member, The Club.|
|1962-63||Visiting Professor: University of Pennsylvania, Philadelphia, Pennsylvania|
|1965-67||Visiting Professor: Rutgers University, New Brunswick, New Jersey.|
|1967||Associate Fellow: Morse College, Yale University, New Haven, Connecticut.|
|1979||Mellon Chair in Humanities, Visiting Professor: Rice University, Houston, Texas.|
|1991||Died in North Egremont, Massachusetts.|