Manuscript copy of a deposition by Chief John Grass, one page, 7.75 x 12.5, circa April 1881. Manuscript copy of a deposition by the Sioux chief in relation to potential efforts to undermine the authority of the Indian agent, Father Joseph A. Stephan—known as the 'fighting priest'—at Standing Rock. In part: "John Grass Head Chief of the Blackfoot band of Sioux Indians being called to the U.S. Indian Agents office makes the following statement voluntarily: I was not at Genl. Carlin's Council on Jan'y 2d. I and my band never spoke against our present agent in any way. He has always treated us honestly and right. We desire no change…The above is a correct translation of Jno. Grass speech, Chas. Primeau, Elvin Agard, Interpreters." In fine condition.