Museum of Modern Art (New York, N.Y.)

Note about correspondence from Henri Marceau, Associate Director of the Philadelphia Museum of Art, to André Lejard, Société d'Exploitation des Éditions du Chêne.

Notes from telephone conversation with Richard L. Palmer, Coordinator of Exhibitions for the Museum of Modern Art, written by Anne d'Harnoncourt, Curator of 20th Century Art for the Philadelphia Museum of Art.

Stella, Joseph. "Portrait of Marcel Duchamp," drawing. Copyprint and note from Anne d'Harnoncourt, George D. Widener Director of the Philadelphia Museum of Art.

Research and notes related to Duchamp's friends and associates compiled by Anne d'Harnoncourt, Curator of 20th Century Art at the Philadelphia Museum of Art, Kynaston McShine, Curator for the Museum of Modern Art, and Jane Necol, Curatorial Assistant for the Museum of Modern Art.

Research and notes related to photographs of Duchamp and/or his work compiled by Anne d'Harnoncourt, Curator of 20th Century Art at the Philadelphia Museum of Art, Kynaston McShine, Curator for the Museum of Modern Art, and Jane Necol, Curatorial Assistant for the Museum of Modern Art.