Archival Material: Irving Penn Notebook A7, "An Immodest Claim to Artistic Roots," n.d.
Irving Penn's sketch of an artistic genealogical family tree showing artists and designers who influenced his career, including Alexander Liberman and Alexey Brodovitch as well as El Lissitzky, Giorgio Morandi, Charles Sheeler, Fernand Léger, Kurt Schwitters, Walker Evans, Georges Braque, Richard Avedon, Adolph De Meyer, August Sander, Paolo Uccello, and Man Ray.
For more information, on Irving Penn's influence please see Alexey Brodovitch and Alexander Liberman. A later verson of this genealogical family tree, created in New York (2003), was published in A Notebook at Random (2004), p. 107.
Irving Penn Archives, Series XVIII, Box.FF 185.7.
Link to R&B Digital Collections record