George, my emails were returned to me when I attempted to reply to you for some very weird reason. So, I'll post some leads here:

Louisiana Historical Quarterly, Vol. 26: Letters from E. Jefferson Lee, Co. C, 17th La. They span from August 1861-1864.

Douglas, Maynard, ed., "Vicksburg Diary: The Journal of Gaberiel M. Killgore," Civil War History 10, no. 1 (1964): 46-47.

I would strongly suggest going to LSU's Special Collections and Tulane's also. I remember seeing information on this regiment at LSU but since the 17th Louisiana was not part of my brigade that I was researching I did not pay close attention.

I hop this helps.