HEADQUARTERS,
                                     Fort Lyon, Colo. Ter., May 21, 1864.
Lieutenant J. S. MAYNARD,
        Actg. Asst. Adjt. General, Mil. dist. of Colo., Denver, Colo.:
    LIEUTENANT: I have the honor to acknowledge the receipt of letter from district headquarters, of date May 16, and would state, for the

information of the colonel commanding, that I have just received a dispatch from Lieutenant Wilson, commanding Camp Wynkoop, a picket camp 60 miles east of this post, to the effect that the Cheyennes are about establishing a large camp in his vicinity, and have sent him instructions in accordance with those laid down in above-mentioned letter, with the exception that, after gaining all the information in his power in regard to the Indians, he will report the result of his investigation to myself, when, if they are a portion of the party of Cheyennes before named, who have committed the depredations, I will use the proper means to punish them. The announcement I have received of the fact of potatoes being en route for this post comes as welcome news, they being very much required. In regard to the repairing of quarters I am happy to state that I have succeeded so far in making repairs of material benefit without any expense to Government.
        I am, lieutenant, your obedient servant,
                                                    E. W. WYNKOOP,
                    Major First Cavalry of Colorado, Commanding Post.

Source:

United States. War Dept., United States. Record and Pension Office., United States. War Records Office., et al., "Red River Campaign," The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies. Prepared by The late Lieutenant Colonel Robert N. Scott, Third U. S. Artillery, Published Under the Direction of The Honorable Redfield Proctor, Secretary of War, By Major George B. Davis, U. S. A., Mr. Leslie J. Perry, Mr. Joseph W. Kirkley, Board of Publication. Series I-Volume XXXIV-In Four Parts. Part III-Correspondence, Etc. Washington: Government Printing Office. 1891. pp. 711-712.