The following institutions assisted with the imaging work for this project. They are listed in alphabetical order.

• Art Institute of Chicago

• Beinecke Rare Book and Manuscript Library, Yale University

• Harvard Art Museums

• Harvard College Library

• Minneapolis Institute of Arts

• MoMA – The Museum of Modern Art

• Museum of Fine Arts, Boston

• Northeast Document Conservation Center

• The Getty Center

• The Guggenheim Museum

• The Metropolitan Museum of Art

• The National Gallery of Art, Washington

• The National Gallery, London

• University of California Berkeley Art Museum and Pacific Film Archive

• Victoria & Albert Museum

• Yale Center for British Art

• Yale University Art Gallery