Hi John,

Was able to find this on the NPS Civil War soldier site. This may or may not be your East Tennessee Unionist.

Andrew J. Cleek (First_Last)
Regiment Name 4 Tennessee Mounted Infantry
Side Union
Company A
Soldier's Rank_In Private
Soldier's Rank_Out Private

Yanks or Rebs from Tennessee weren't the greatest record keepers. The " company A " caught my eye. Here's a brief history of the Tenn. Union 4th Mtd.

UNION TENNESSEE VOLUNTEERS

4th Regiment, Tennessee Mounted Infantry

Organized at large in Tennessee September 1, 1864. Stationed at Alexandria, Tenn., operating against guerrillas. Four companies at La Fayette, Tenn., 4th Sub-District, Middle Tennessee, April, 1865. Action at Wall's Hill September 28, 1864. Polk County November 23, 1864. Operating against guerrillas in White, Overton, Fentress and Montgomery Counties and quieting country till August, 1865. Mustered out August 25, 1865.

There was also a Silvanus I. Cleek in Co. A of this regiment. A lot of times you'll see " alternate spelling " for Cleek as Click or vice - versa for Tennessee soldiers Union and Confederate.
Hope this helps, Good luck in your research and God- Bless.

Glenn Land