Try Dr.Simpson's book, Hood's Texas Brigadea. It does have the stuff your looking for on Page 311. hat is just a short blurb, then you might take a gander at the University of Texas Press. They may have a book on Terry's Texas Rangers, since it got a good rep. The flag of the 11th is at Camp Mabry, in Austin, Texas. They also, when not on tour, have the flag of the 10th Cavalry. Which was dismounted and fought as Inf. with the Army of Tenn.