Roster of Union Soldiers, 1861-1865, shows:

Lee, Thomas J. KY 52nd Inf. Co.I Cpl.

52nd KY Mounted Inf organized at Franklin and Scottsville, KY. Co 'I' mustered in at Franklin 3/3/1864 - attached to 3rd Brig, 1st Div, Dist of KY, Dept of OH to July 1864 - 2nd Brig, 2nd Div, Dist of KY, Dept of OH to Oct 1864 - 1st Brig 2nd Div, Dist of KY, 5th Div, 23rd Army Corps, Dept of OH to Jan 1865 - Mustered out 1/17/1865 at Scottsville, KY
Reg lost during service 1 officer and 10 enlisted men killed and mortally wounded and 48 enlisted men by disease. Total 59.

Dyer's Compendium of the War of the Rebellion, Vol II, page 1212

Roster also shows:

Lee, Isaac T. KY 52nd Inf. Co.C 2nd Lt.
Lee, Milton KY 52nd Inf. Co.K Cpl.