Statistics for occurrence #1 of “Colonel Cooper” in chapter 8.27 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: The Opening Battles. Volume 1.:

... Chief Ross, went over to Hopoeithleyohola, and fought with him in the next day's desperate battle (known as the battle of Chusto Talasah), in which five hundred of the Union Indians were reported by Colonel Cooper to have been killed and wounded. The Confederate Indians of Colonel Stand Watie's regiment, and those of Colonel Drew's regiment who had returned to the Confederate service under Pike and Cooper,...
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