Lee, I've done some pretty extensive research on the 3rd Arkansas Regiment over the years, and I, too, hit a brick wall at Chickamauga. Colonel Manning, in his after-action report, stated that he had submitted a list of casualties, but that list was not included in the Official Records. I finally resorted to going through the Compiled Service Records, name by name, and came up with a reasonably accurate list, which I'll post below. I say "reasonably" accurate, because the names of several soldiers were dropped from the rolls after the battle, with no explanation as to why. I found a few of them in Georgia cemetery lists, having died of wounds in the weeks following the battle. It can be reasonably assumed that many, if not most, of the soldiers dropped from the rolls met the same fate, but without any documentation, I don't want to muddy up the historical waters with unsupported assumptions. Anyway, with that caveat, here's the list I put together --

Alford, John A., Private, Co. I, killed
Barker, William M., Sergeant, Co. G, wounded
Barnes, William C., Private, Co. F, wounded
Beavers, Henry J., Private, Co. A, wounded
Bigham, Elias L., Musician, Co. K, wounded
Blackburn, James S., Private, Co. K, wounded
Blair, James J., Corporal, Co. K, wounded
Boatner, John L., Private, Co. C, wounded
Booth, Derensellear R., Private, Co. G, wounded
Brinton, Caleb, Private, Co. E, wounded
Brown, Tyree H., Second Lieutenant, Co. I, wounded
Bryan, Charles K., Corporal, Co. F, wounded
Bull, Robert C., Private, Co. A, wounded
Burns, James M., Private, Co., H, wounded
Butler, James P., Sergeant, Co. A, wounded
Cameron, John A., Second Lieutenant, Co. A, wounded
Canterberry, James H., Corporal, Co. G, wounded
Carter, Delton H., Private, Co. D, wounded
Carter, James E., Private, Co. A, wounded
Carter, William J., Private, Co. D, killed
Cay, Samuel, Private, Co. H, captured
Clary, Nathaniel O., Private, Co. A, wounded
Cochran, Prayler R., Private, Co. I, killed
Courtney, Eugene, First Sergeant, Co. G, wounded
Daniel, Jesse T., Private, Co. A, wounded
Elam, Richard, Private, Co. A, captured
Foreman, Francis M., Private, Co. I, killed
Gillespie, William H., Private, Co. B, mortally wounded
Goodwin, Theophilus S., Sergeant, Co. B, wounded
Gregory, Joshua G., Private, Co. A, wounded
Harle, Armistead B., Private, Co. D, wounded
Harper, John S., Private, Co. I, wounded and captured
Hefley, John, Private, Co. F, wounded
Hightower, Joshua, Captain, Co. C, wounded
Holcomb, A.W., Private, Co. K, wounded
Hyatt, Benjamin F., Sergeant-Major, killed
Jackson, Phineas T., Private, Co. C, wounded
Johnson, James M., Private, Co. C, killed (color bearer)
Johnson, Simeon B., Corporal, Co. F, wounded
Jones, James A., First Lieutenant, Co. G, wounded
Jones, James W., Private, Co. I, captured
Jones, Marion C., Private, Co. D, wounded
Kadle, Jeremiah D., Private, Co. E, wounded
Lemaster, John T., Private, Co. H, wounded
McClendon, Eli T., Private, Co. F, captured
McGoogan, Malcolm D., Private, Co. G, wounded
McKinney, Edmund J., Private, Co. D, wounded
Marshall, Willis S., Corporal, Co. I, wounded
Moore, William A., Private, Co. A, wounded
Morris, William B., Private, Co. I, wounded
Morse, Harrison, Private, Co. K, captured
Murray, Jasper N., Sergeant, Co. B, mortally wounded
Newton, Richard M., First Sergeant, Co. F, wounded
Norris, Paschal H., Private, Co. E, wounded
Palmer, Abraham W., Third Lieutenant, Co. C, killed
Price, John R., Private, Co. C, wounded
Ramsaur, William P., Private, Co. A, wounded
Reedy, John W., Major, killed
Rhodes, Adam C., Private, Co. C, wounded
Sawyer, John D., Private, Co. K, wounded
Smith, William P., Private, Co. A, wounded
Snyder, Thomas J., First Sergeant, Co. E, wounded
Stephens, Franklin S., Private, Co. A, wounded
Sumner, Simon P., Private, Co. C, deserted the battlefield
Taylor, J.W.J., Private, Co. A, wounded
Thompson, Ennis, Private, Co. F, wounded
Tiner, Luke M., Private, Co. D, wounded
Tuggle, Robert L., Private, Co. C, wounded
Turnbow, Joseph E., Sergeant, Co. A, wounded
Tyler, John W., Private, Co. F, wounded
Wallace, Richard E., Private, Co. A, wounded
Watson, Wesley A., Private, Co. K, wounded
Welch, Turner G., Private, Co. E, wounded
White, David A., Sergeant, Co. H, wounded
Williams, James V., First Sergeant, Co. K, wounded
Wilson, Augustus H., Sergeant, Co. A, wounded
Wood, Adoniram J., Sergeant, Co. K, wounded
Woods, William H.H., Private, Co. K, wounded
Worthington, Warren W., Second Lieutenant, Co. G, killed
Young, William, Private, Co. B, wounded