Anton Refregier. Anton Refregier Christmas card to Jacob Kainen, 1971. Jacob Kainen papers, 1905-2009. Archives of American Art, Smithsonian Institution.
Michael Clark. Michael Clark, New York, N.Y. christmas card to Jacob Kainen, Chevy Chase, Md., Dec. 1977. Jacob Kainen papers, 1905-2009. Archives of American Art, Smithsonian Institution.
Michael Ponce de Leon. Michael Ponce de Leon Christmas card to Jacob Kainen, 1965 or 1966. Jacob Kainen papers, 1905-2009. Archives of American Art, Smithsonian Institution.
Cynthia Brumbeck. Cynthia Brumbeck and Wang Ming holiday card to Jacob Kainen, 1985. Jacob Kainen papers, 1905-2009. Archives of American Art, Smithsonian Institution.
Un-Ichi Hiratsuka. Un-ichi Hiratsuka holiday card to Jacob Kainen, 1973. Jacob Kainen papers, 1905-2009. Archives of American Art, Smithsonian Institution.
Valerie Thornton. Valerie Thornton holiday card to Jacob Kainen, 1984. Jacob Kainen papers, 1905-2009. Archives of American Art, Smithsonian Institution.
Jacob Kainen, Harold Hunt and Sid Deutsch at gallery exhibition, 1983. Jacob Kainen papers, 1905-2009. Archives of American Art, Smithsonian Institution.