by Hazel Strand, center verso in graphite: Paul Strand H.S / Rock by the Sea / Georgetown, Maine / 1927; by later hand, upper left verso in graphite: 33. / 5; by later hand, upper center verso in graphite: EW-NF-192 / gift/P-H
Paul Strand Archive, Aperture Foundation, Millerton, NY; Southwestern Bell Corporation, St. Louis, MO; gift to NGA, 1991
- Greenough 1990, p. 67
- Paul Strand: An American Vision, National Gallery of Art; The Art Institute of Chicago; Saint Louis Art Museum; The Museum of Fine Arts, Houston; Whitney Museum of American Art, New York; The Fine Arts Museums of San Francisco, San Francisco; Victoria and Albert Museum, 1990 - 1992, unnumbered catalogue.
- Newhall, Nancy. Paul Strand. Photographs 1915-1945. New York, 1945: p. 17.
- Paul Strand. A Retrospective Monograph. The Years 1915-1968 (Millerton, 1971), pl. 56
- Paul Strand. Sixty Years of Photographs (Millerton, 1976), p. 100
- Rosenblum, Naomi. "Paul Strand. The Early Years, 1910-1932." Ph.D. dissertation, City University of New York, 1978: fig. 106.
- Greenough 1990, p. 158, illus. p. 67