Correction:
Waul's 1st Brigade of Walkers Texas Divison was composed of the following infantry regiments and a artillary battery:
12th Texas Infantry
13th Texas Cavalry (dismounted)
18th Texas Infantry
22nd Texas Infantry
Haldeman's Battery
The only regiment raised and trained as cavalry in Waul's 1st Brigade, Walkers Division, was the 13th Texas Cavalry regiment (dismounted) which served as infantry. Since a A Legion is composed of artillary, cavalry and infantry elements and since the 13th Texas Cavalry (dismounted) was serving as infantry, Waul's Brigade could not be classified as a Legion.