The Record of Events for this regiment may contain info as to the actions of Co. C. Larger libraries may have this set of books. This same info is on the film for the regiment that can be purchased thru the National Archives but is often difficult to read. Dyer's Compendium will have some regimental history but perhaps not on individual companies. Also the Adjutant General Reports for 1865-65
would be another source to check.