Papers of the American painter, art critic. Correspondence, 1910-1969; holograph and typescript essays, lectures, and speeches; photographs; and printed material, including articles, exhibition catalogs, and material relating to the National Academy of Design, of which Clark wrote a history.

Papers of the American still-life and portrait painter; specialized in the female figure. Collection includes correspondence concerning art exhibitions (1945-1953); artwork reproductions, statements on art, and memorabilia, including articles and clippings about Bassford (1953-1968) as well as his exhibition catalogs (1939-1962).