[3] Formed in mid-April 1862, from men mustered out of 1st (McCulloch's) Mounted Riflemen; later part of the 1st Cavalry regiment.
[7] Organized October 23, 1862 by Leonidas M. Martin to act as "Police Guards" in Cooke County.
[7] Organized March 1, 1864, as a replacement for the Frontier Regiment (McCord's) (see below), transferred to Confederate service.
[8] A temporary field organization under William Saufley; formed in January 1864, for the defense of Galveston.
[9] Mustered into service for three years in February 1863 as a replacement for the disbanded Frontier Regiment (Norris').
[10][3] Authorized by the Legislature on December 21, 1861 as a replacement for 1st (McCulloch's) Mounted Riflemen in frontier defense.