Statistics for occurrence #1 of “U. S.A.” in chapter 38 of Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 4.:

...d John Cannon, a Virginia refugee. Gen. Lander charged, followed by Major Armstrong, Assistant Adjutant-General; Fitz-James O'Brien, the well-known poet of his staff; and Major Bannister, Paymaster U. S.A. , who had volunteered for the expedition. A group of rebel officers were distant about three hundred yards, encouraging their men. General Lander being mounted on his celebrated horse, outran the re...
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