lower right on stone: Biddle / 1930; lower left in graphite: In Memorium: Sacco and Vanzetti, / "Our Senses will applaud the world again; / But who can clap life into murdered men?"; lower right in graphite: George Biddle / 30/50; lower left corner in black ink by unknown hand: No. 68.; upper right verso in graphite by unknown hand: 20 x 24
the artist, Croton-on-Hudson, New York; Corcoran Gallery of Art, Washington, DC, 1957; acquired 2015 by the National Gallery of Art
- The Graphic Work of George Biddle, Corcoran Gallery of Art, Washington, DC, 1979, no. 102
- Pennigar, Martha. The Graphic Work of George Biddle, with Catalogue Raisonné. Washington, DC: Corcoran Gallery of Art, 1979, pp. 26, 45, no. 102.