Philadelphia Museum of Art, ed. Ulrich W. Hiesinger and Ann Percy, A Scholar Collects: Selections from the Anthony Morris Clark bequest, Philadelphia: Philadelphia Museum of Art, 1980.

Philadelphia Museum of Art, ed. Ulrich W. Hiesinger and Ann Percy, A Scholar Collects: Selections from the Anthony Morris Clark bequest, Philadelphia: Philadelphia Museum of Art, 1980., Box: 7. John Anderson papers, MSS 0312. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/87378 Accessed September 16, 2024.