Charles C. Hofmann
Bibliography
1968
Armstrong, Thomas. Pennsylvania Almshouse Painters. Exh. cat. Abby Aldrich Rockefeller Folk Art Center, Williamsburg, 1968.
1980
Armstrong, Thomas. "Charles C. Hofmann." In Lipman and Armstrong 1980, 103-109.
1992
Chotner, Deborah, with contributions by Julie Aronson, Sarah D. Cash, and Laurie Weitzenkorn. American Naive Paintings. The Collections of the National Gallery of Art Systematic Catalogue. Washington, D.C., 1992: 201.