The US Army Military Historical Institute has a considerable collection of published books, unpublished manuscripts, and photos pertaining to the Civil War. Resources for Union units are better than for CSA units, but often there is a surprising amount of material available on a Confederate unit.
Link:
http://cdm16635.contentdm.oclc.org/
Try typing your unit's id in the search blank.
Link:
http://cdm16635.contentdm.oclc.org/
Try typing your unit's id in the search blank.
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