Lewis D. Campbell to John White, April 6, 1867

Mr. Campbell to Mr. White

Sir: On the recommendation of Major General Sheridan, I have selected you as special bearer of despatches to the government of the republic of Mexico.

You will proceed as expeditiously as possible to San Luis Potosi, or to such other point in Mexico as may be found necessary, and deliver in person to S. Lerdo de Tejada, minister of foreign affairs, (or if he be not there, to President Juarez,) the sealed communication addressed to the minister.

From this city you will go forthwith to Galveston, and from that port proceed to Tampico without delay on the United States despatch steamer Black Bird.

On your arrival at Tampico, deliver promptly the sealed letter addressed to Franklin Chase, esq., United States consul general, and go forward as rapidly as you can to San Luis Potosi.

Having delivered the sealed communication addressed to the minister of foreign affairs, you will return immediately by the best and most expeditious route to this city and report to me. Before returning you will obtain such reliable information as you can touching the condition of affairs in Mexico. You may also be the bearer of any communication that government may desire to send to ours through your agency. You will keep an accurate account of your expenses, and report the same to me on your return.

Respectfully yours, &c.,