Bryce,
I recommend these books. The last one is the best modern compilation of Mosby’s engagements and the roster of the 43rd Battalion.
“The Memoirs of Colonel John S. Mosby,” Mosby & Charles Wells Russell, Little, Brown and Company, 1917, Olde Soldier Books, Inc.,1987.
“Partisan Life with Colonel John S. Mosby,” John Scott, New York, Harper and Brothers, 1867, 1985.
“Mosby and His Men,” Marshall J. Crawford, Reprint ed., Olde Soldiers Books, Gaithersburg, 1987.
“Mosby’s Men,” John H. Alexander, Washington, DC, Neale Publishing Company, 1907.
“Mosby’s War Reminiscences,“ John Singleton Mosby, New York, Dodd, Mead & Company, 1898, reprint by Old South Books. n.d.
“Mosby’s Rangers A Record of the Operations of the Forty-Third Battalion of Virginia Cavalry from its Organization to the Surrender,” Sturgis & Walton Company, New York, 1909, reprint, Old South Books, n.d.
Not a ranger written book, but the best modern record of the 43rd Battalion’s engagements and roster of its men: “43rd Battalion Virginia Cavalry Mosby’s Command,” The Virginia Regimental Historical Series, Hugh C. Keen & Horace Merborn, eds., H. E. Howard, Inc., Lynchburg, 1993.