Of the meager records for the regiment, I find only these two Masseys:

James Massey, age 45, Private, Company H, 1st Regiment (Dobbin's) Arkansas Cavalry, enlisted at Woodruff County, grey eyes, dark hair, dark complexion, 5' 9", born in Arkansas, paroled at Wittsburg, Ark., May 25, 1865

.....

James Massey, age 20, 1st Corporal, Company D, 1st Regiment (Dobbin's) Arkansas Cavalry, enlisted at Datesville, black eyes, dark hair, dark complexion, 5' 6", born in Kentucky, paroled at Jacksonport, Ark. June 5, 1865

M317: Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Arkansas