Statistics for occurrence #1 of “Confederate States” in chapter 1.2, section c.1.2.30 of Southern Historical Society Papers, Volume 30.:

...gade in Army of the Potomac and Army of Northern Virginia up to July 19, 1862; then superintendent of Tredegar Iron Works, Richmond, Va., after July 19, 1862, manufacturing cannon and projectiles for Confederate States Army.
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† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.