Some regimental records such as Record of Events are contained in Broadfoot's "The Supplement to the Official Records." These are arranged in separate state volumes. There usually is not a great deal of information therein, and I believe they were totally captured on the microfilm rolls. I could be wrong on this.
I'm quite sure the TSLA hold the Supplements. An index will help you find out if additional narratives are contained in the other volumes to this set.
What units did your men serve with? We might be able to identify available unit histories.
I forgot to mention that Lindley's two volume work, Military Annals of Tennessee contains some good unit histories. Drew Brock is listed on page 216 of the 23 page unit history as having been captured at the Battle of Chckamauga. Also, Part 1 of Tennesseans in the Civil War. See this website for information on Brock's 6th Tennessee:
http://www.geocities.com/sixth_tennessee/Hisbase.html
George Martin
Drury Brock
Residence was not listed;
Enlisted as a Sergeant (date unknown).
"L" Co. TN 6th Infantry
Other Information:
born 2/6/1840 in Henderson Co., TN
died 8/13/1908 in Stokes,TN
(Or Drew Brock)
Here is a contact I just found on the web:
Name: Drury Brock
Rank: Sergeant
Company: L
No Comments.
Contact Name: Rae Hopper
Contact E-Mail: Click for E-mail wrhop@charter.net
Homepage:
Date Added: 1/18/2006