William H. Seward to Lewis D. Campbell, May 25, 1866

Mr. Seward to Mr. Campbell

Sir: The commission of envoy extraordinary and minister plenipotentiary of the United States near the government of the republic of Mexico having been accepted by you in your letter of the 23d instant, I transmit herewith your printed personal instructions in that character, a sealed letter accrediting you to his Excellency Don Benito Juarez, the President of the United Mexican States, the usual office copy of the same, and a special passport for yourself and suite.

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You will please inform the department of the date of your departure from your residence, of that of your arrival at the seat of the government of the republic of Mexico, and of your entrance upon your duties there.

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The department entertains the confidence that your intelligent and zealous attention to the interests of the United States, now confided to your care, will be eminently conducive to the harmony and friendly relations existing between the governments of the two countries.

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I am, sir, your obedient servant,