Well I guess I botched that post as I got a message its waiting to be approved by the moderator. I tried to tie an image to it, anyway....
Your felow is listed as Pvt. George W McClewer in Co D 39th Regiment Missouri Volunteer Infantry under Captain Meredith. Enlisted Hannibal August 20 1864, discharged Benton Barracks July 19, 1865.
The actual card however shows McCleuer, Geo. W.
NPS Soldiers and Sailors has a George N. McCluer as a Pvt Co D 39th Missouri Infantry See note below:
39th Regiment, Missouri Infantry
Organized at Hannibal, Mo., August 18 to September 30, 1864. Attached to District of St. Louis, Dept. of Missouri, to November, 1864. Nashville, Tenn., Dept. of the Cumberland, to December, 1864. District of Kentucky, Dept. Ohio, to January, 1865. District of Nashville, Tenn., Dept. of the Cumberland, January, 1865. District of St. Louis, Mo., to July, 1865.
SERVICE.-Scout duty and operating against guerrillas in Macon, Rails, Pike, Monroe, Audrain, Callaway, Boone, Howard and Chariton Counties, Mo., September. Actions about Sidney, Rails County, September 11-16 (Co. "D"). Companies "A" and "G" ordered to Paris September 14. Company "E" to Rails County September 20. Companies "C" and "H" to Paris September 22. Company "D" to Macon September 23. Companies "B" and "I" to Macon September 24, and Company "F" to Macon September 25, 1864. Action with Anderson's guerrillas and massacre on North Missouri Railroad near Centralia September 27 (Cos. "A," "G" and "H"). March from Macon to Jefferson City, Mo., October 1-7. Defence of Jefferson City October 7-8. Moved to LaMine Bridge October 19-20, thence to Glasgow November 1-3, and duty there till December 13. Ordered to Nashville, Tenn., December 13, arriving there January 1, 1865. Return to St. Louis, Mo., January 4-9, 1865. Duty at Benton Barracks and in District of St. Louis, Mo., till July. Companies "A," "G" and "K" provost duty at Cape Girardeau, Mo., April 24 to July 6. Companies "D" and "E" at Glasgow and Company "B" at St. Genevieve. Scout from Glasgow to Perche Hills March 7-15, 1865 (Co. "D"). Company "H" provost duty at Benton Barracks. Companies "C," "E," "F" and "I" mustered out March 20, 1865. Regiment mustered out July 19, 1865.
Regiment lost during service 2 Officers and 130 Enlisted men killed and mortally wounded and 64 Enlisted men by disease. Total 196.
I think this matches your fellow.
There is a George W. McCluer in Bear Creek Twsp Montgomery Co. MO in the 1860 census born 1837 in Virginia. I believe he survived the war and returned to Danville MO in Prarie Twshp, Montgomey Co in 1870 census.