On the slight chance that you do not already have this information, I found the following in the Bossier Banner of Oct. 28, 1909:
First Color Sergeant: John Brown, Company D (Claiborne Grays)
Second Color Sergeant: Holland Williamson Clarke, Company A (Vance Guards) wounded July 28, 1864 at Poor House, or Ezra Church, on Sand Town Road, in front of Atlanta; leg amputated.
Third Color Sergeant: A. F. Jackson, Company F (Henry Marshall Guards)