Perhaps you would like to arrange for inner library loan for some of these 27th NC related books, etc:

From New Bern to Bennett Place with Cooke's "Foot Cavalry" : a history of the Twenty-seventh Regiment of North Carolina Troops, 1861-1865
by Christopher C Bingham; East Carolina University. Dept. of History.

Reminiscences of the Guilford Grays, Co. B., 27th N.C. regiment
by John A Sloan

The 27th North Carolina troops at Sharpsburg
by H Z Bogue

The James A. Graham papers, 1861-1884,
by James Augustus Graham; Henry McGilbert Wagstaff