I did a quick lookup of simular names of Mississippi Confederates and this Union regiment. Below is what I found. This is not proof positive that these are the same men. Also I did not lookup Confederates from Tennessee, Arkansas, Louisana etc. that could have been in this regiment.
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Duvall, Jeremiah
Union 1st Battalion, Mississippi Mounted Rifles
Duvall, Jeremiah
Confederate Cavalry 10th Regiment, Mississippi Cavalry
Easterwood, E. H.
Confederate Cavalry 8th Regiment, Mississippi Cavalry
Easterwood, Ed.
Confederate Cavalry 8th Regiment, Mississippi Cavalry
Easterwood, Edward
Union 1st Battalion, Mississippi Mounted Rifles
Irby, John
Union 1st Battalion, Mississippi Mounted Rifles
Irby, John
Confederate Cavalry 18th Regiment, Mississippi Cavalry
Ivey, Jackson
Confederate Infantry 2nd Regiment, Mississippi Infantry (State Troops) (30 days, 1864)
Ivey, Jackson M.
Union 1st Battalion, Mississippi Mounted Rifles
Ivey, J. H.
Confederate Infantry 3rd Regiment, Mississippi Infantry
Ivey, Joshua H.
Union 1st Battalion, Mississippi Mounted Rifles
Kayes, Patrick
Union 1st Battalion, Mississippi Mounted Rifles
Kayes, Patrick
Confederate Infantry 10th Regiment, Mississippi Infantry
Kayes, Patrick
Confederate Infantry 18th Regiment, Mississippi Infantry
Muse, N. B.
Confederate Cavalry 10th Regiment, Mississippi Cavalry
Muse, N. B.
Confederate Infantry 2nd Regiment, Mississippi Infantry
Muse, Nathaniel B.
Union 1st Battalion, Mississippi Mounted Rifles
Philpot, James M.
Union 1st Battalion, Mississippi Mounted Rifles
Philpot, James M.
Confederate 2nd Regiment, Mississippi Partisan Rangers
Philpot, Micager
Union 1st Battalion, Mississippi Mounted Rifles
Philpot, Micager
Confederate Infantry 4th Regiment, Mississippi Infantry
Philpot, R. J.
Confederate Cavalry 2nd Regiment, Mississippi State Cavalry
Philpot, Reuben J.
Union 1st Battalion, Mississippi Mounted Rifles
Philpot, James M.
Union 1st Battalion, Mississippi Mounted Rifles
Philpot, James M.
Confederate 2nd Regiment, Mississippi Partisan Rangers
Riales, John P.
Union 1st Battalion, Mississippi Mounted Rifles
Riales, John P.
Confederate Infantry 9th Regiment, Mississippi Infantry
Tart, G.W.
Confederate Cavalry 8th Regiment, Mississippi Cavalry
Tart, George W.
Union 1st Battalion, Mississippi Mounted Rifles
Varner, Addison M.
Union 1st Battalion, Mississippi Mounted Rifles
Varner, Adison M.
Confederate Infantry 20th Regiment, Mississippi Infantry
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David Upton