Dear Mr. Suderow:
I have checked my biliography for William A. Curtis, and found only the reference to two volumes in the Tenn. State Library and Archives as you mentioned.
I did locate a source for his reminiscnces that appeared in 'Our Living and Our Dead (1875), pp. 36-44, 251-290, that may be availabel in some libraries.
Cordially
John R. Woodard
Tar Heel Regimental Research
P.O. Box 2
Germanton, N. C. 27019