Greenwood painting a fresco mural for the WPA Federal Art Project.
Identification on verso (handwritten and stamped): New York City W.P.A. Art Project; Photography Division; 110 King Street Neg. No.: P4140-5; Date: 6/25/40; Photographer: S. Shalat; Artist: M. Greenwood; Location: Red Hook Housing Project.
Archives of American Art, Smithsonian Institution Washington, D.C. 20560