U.S. Mil. Acady. West Point 15 March 1855
Colonel.
I have the honour to accept the appointment of Lieutenant Colonel of the Second Regiment of Cavalry, conferred on me by the President of the United States, & return the oath of allegiance duly executed
I am very resp. Your obedt. Servt.
Signed/ R.E. Lee Br. Col.
Supt. Mil. Acady.
Superintendent's Daily Correspondence United States Military Academy
Superintendent's Letter Book No. 3, p. 191. Addressed “Col: S. Cooper Adjt. Genl. U.S. Army Washington City D.C.”