Here is a list of the Regimental Horse Supply in 1863 (courtesy of James McGhee's book Campaigning With Marmaduke). It is interesting, for as Mr. McGhee said,
"Such information, while not definitive, clearly reveals the serious problems connected with maintaining and effective cavalry unit when the rigors of campaigning, and every day usage, deprived troops of usual mounts....Additionally, when horses were unavailable, the soldier was normally required to find a replacement himself or risk be transferred to the infantry, a fate worse than death to many, with the results and desertion rates soared....when the dearth of horses caused many to be transferred to Col. Robert E. Lawhter's Temepory Discmounted Cavalay Regiment. While some few of the troopers located a mount and returned to the regiment, most did not."
Jan. 1863 Regimental totals: 465
May. 1863 Regimental totals: 465
Jul 1863 Regimental totals: 304
Sep 1863. Regimental totals: 326
Below are pictures of my sons Tom and Jacob with this beautiful Percheron/quarterhorse mix named Chappy. He was a great horse. Also, here are his owners Mr and Mrs Brown from Northern Illinois. They are in their fancy dress garb for a marriage vows renewal ceremony at the last re-enactment we attended.