From the Richmond Dispatch, 4/24/1862, p. 2, c. 7
Assistant Provost Marshal. – Lieut. R. M. Booker, who succeeded Capt. J. C. Maynard as one of the Assistant Provost Marshals of Richmond, entered on the duties of his office on yesterday. Lieut. Booker was for many months one of the officers (and an efficient one, too,) in charge of the C. S. military prison on Main street. Those who know him have confidence in him, and believe that he will discharge the duties of his onerous, laborious, and important office with skill and ability.