Roszak established a studio in New York City in 1932 and worked as an artist for the Works Progress Administration during the depression before going back to Chicago to teach at the Art Institute. He taught at Sarah Lawrence College throughout the 1940s and 1950s and at Columbia University from 1970 to 1973. He was a participating artist at the documenta II in Kassel 1959 and at the Venice Biennale in 1960.[3] Roszak's sculpture, at first closer to Constructivism and displaying an industrial aesthetic, changed after around 1946 to a more expressionistic style.
^Baltimore Museum of Art, Philip Guston, Hans Hofmann, Franz Kline, and Theodore Roszak. Quattro artisti americani: Guston, Hofmann, Kline, Roszak : XXX Biennale, Venezia 1960, Stati Uniti d'America : mostra a cura del Baltimore Museum of Art, in collaborazione con The International Council of The Museum of Modern Art, New York. Washington, D.C.: Printed for the Baltimore Museum of Art by the H.K. Press, 1960.
^Thomas E. Luebke, ed., Civic Art: A Centennial History of the U.S. Commission of Fine Arts (Washington, D.C.: U.S. Commission of Fine Arts, 2013): Appendix B, p. 554.