Physical or emotional movement is a common trait of Gropper's work, as can be readily seen in this lithographic print and two series of sketches.
34-36. William Gropper, [Senate and U.S. Capitol series], n.d. Pencil.
37. William Gropper, Headless Horseman, c1940. Lithograph from the AAA Gallery edition of 250 copies signed in pencil, 12? x 9 inches. This was purchased with the Peter Graham Fund for Radicalism in Literature and Art.