See Polignac's Texas Brigade, Alwyn Barr, pp. 1, 2
http://books.google.com/booksid=6smKD4cv3hYC&pg=PA1&dq=22nd+Texas+Cavalry&hl=en&ei=jV3jS5vHCov8sQOJqZG6DQ&sa=X&oi=book_result&ct=result&resnum=2&ved=0CD0Q6AEwAQ#v=onepage&q=22nd%20Texas%20Cavalry&f=false