August 17, 1862-letter from Camp Crystal Hill: When James and Lafayette Orr reached Little Rock, they were unable to reach Henry's squadron of the 12th Texas Cavalry then in eastern Arkansas. So they joined Darnell's 18th Texas cavalry regiment, which was to be dismounted. Both enrolled on August 1st in Company I of the 18th Texas cavalry regiment at Pulaski, Arkansas.
Darnell's regiment had actually been dismounted about July 16th.