lower left in graphite: Swiftwater Sep 21, 54; lower right verso in graphite by unknown hand: 7712 D Spanierman
(Ira Spanierman, New York); Corcoran Gallery of Art, Washington, DC, 1969; acquired 2015 by the National Gallery of Art
- Simmons, Linda Crocker and with the assistance of Adrianne J. Humphrey, et al. American Drawings, Watercolors, Pastels, and Collages in the Collection of the Corcoran Gallery of Art. Washington, DC: Corcoran Gallery of Art, 1983: p. 32, no. 224.