Statistics for occurrence #1 of “U. S. A.” in article 1 of The Daily Dispatch: October 19, 1863., [Electronic resource]:

... have but one thing to impress upon you — the absolute necessity of secrecy and success. With the highest regard, I am, my dear General, your sincere friend, Geo B. McClellan, Major-General U. S. A. Headq's Army of the Potomac,Washington, Sept. 12, 1861. Major-Gen. N. P. Banks, commanding near Darnestown, Md. General: Enclosed I have the honor to send you an order regarding the L...
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