The only one confirmed is Giles R Graves who served in 11th Co B and 11th and 17th Co A before deserting and later joining Co H 4th Ark Cav US and transferring to 2nd Mo Art.

His brothers both served in Co C 3rd Ark Cav, enlisting in Perry County where quite a few Saline Co men went to enlist in this unit. I cannot find anything on Thomas though in a US unit anywhere. Chances of him being the man in Co E 3rd ARk CAV CS are slim.