On Roll 255 ARKANSAS SOLDIERS IN VARIOUS MISCELLANEOUS UNITS, I find the following individuals listed. I believe that there are from two volunteer companies raised in Hot Spring County that probaby became part of Newton's 10th Arkansas Cavalry Regiment, but I have not proven that.

1st Bn State Troops
BRENT, J.M. -- Co E, 1st Bn State Troops, 13 Jun 1864 in Hot Spring Co, AR.
ADAMS, W.C. 1Lt Co B, 1st Bn, Cav, State Troops. Enl 21Jan1864 at Camp Trader, AR.
ALDEN, C. - Co E, 1st Bn, State Troops. Hot Spring Co, 13 Jun 1864.
CHRISTIAN, D.W. -- Co E, 1 Bn State Troops. 13 Jun 1864 in Hot Spring Co, AR. Paroled about 25 May 1865 at Memphis, TN.
DAVIS, J.M. -- Co E, 1st Bn AR State Troops. 13 Jun 1864 Hot Spring Co, AR.
DAY, ALF -- Co E, 1st Bn StateTroops. 13 - Jun 1864 in Hot Spring Co, AR.
DOUGLAS, JNO. C. Cpt - Co A, 18th Regt Militia. Enl 1 Mar 1861 at Benton, AR. Resigned position as Cpt.
DOWNEY, G. -- Co E, 1st Bn State Troops. 13 Jun 1864 Hot Spring Co, AR.
DOWNEY, J. -- Co E, 1st Bn State Troops. 13 Jan 1864 Hot Spring Co, AR.
DYER, J.W. Cpt, - Co E, 1st Bn State Troops 21 Jun 1864 at Camp Trader, AR.
FROST, E.P. -- Co E, 1st Bn State Troops. 13 Jan 1864 in Hot Spring Co, AR.
FROST, R.N. -- Co E, 1st Bn State Troops. 13 Jan 1861 in Hot Spring Co, AR.
HARDY, J.W. -- Co E, 1st Bn AR State Troops. 13 Jun 1864 in Hot Spring Co, AR.
FLOYD, WILLIAM H. -- Co E, 1st Bn, AR State Troops 13 Jun 1864 Hot Spring Co, AR.
FISHER, T.J. -- Co E 1st Bn AR State Troops. 13 Jun 1864 Hot Spring Co, AR.
HUBBARD, J.L. -- Co E 1st Bn State Troops. 13 Jul 1864 Hot Spring Co, AR.
BROWN, VAL -- Co G, 1st Bn State Troops, Hot Spring Co, AR 15 Jun 1864.
CLARK, WILLIAM Pvt - Co B, 1st AR State Service. Took oath 2 Mar 1864 and released at New Madrid, MO.