Stan, James Mallory Collins lived in La Plata, Macon County before the War.I do not have his Confederate service records, only the Oath of Allegience he had to sign.
An interesting note from James' obit:

"At the cemetery, the members of the A. F. & A. M. took charge of the services and performed the last sad rites in honor of their departed brother, which was followed by the short but concise talk by General William Taylor, who lately has been elected Commander of the Oklahoma Division U. C. V. (Confederate Veterans), at the State Reunion held in Shawnee, September 27th.

He and Mr. Collins fought side by side in the Confederate Army and were old time friends.
This beloved resident of Blair was born in Giles County, Tennessee, on November 3rd, 1835, moved to Missouri in 1852, where he married five years later."

James' brother,Burthaer J. Collins was also in the Confederate Army. B. J. Collins, Pvt. C. H., 11 Regt., MO. Residence Macon County, MO. He appeared on the roll of Prisoners of War dated 13 June 1865, Shreveport, LA, of Detachment, Employees Marshall Arsenal, Confederate.

I would love to find more on these Collins brothers and get a copy of their service records, if there is more available.

Although James was white, I did find this, but cannot confirm this was one of the Collins brothers:

THE NEGRO SOLDIER IN THE SECOND BATTLE OF BOONVILLE
The Earliest Combat Soldier
By James F. Thomas, Cooper County Historical Society

September 09, 1861, Monday
In part of Cooper County, the winds of an impending battle were being circulated. John A. Poindexter, captain of some of the local Confederate forces, indicated his designs to Colonel William B. Brown in the following missive:

"Dear Sir - I learn this evening, from undoubted authority, that there is a boat aground, about three miles above Boonville, with a large quantity of sugar and coffee and ammunition, and manned with about ninety Federals. I intend sending a force against them in the morning, and would like to have your cooperation. I am satisfied you are fond of fun, and if we fail to get there in time to capture the boat, we can and will make a demonstration against the force at Boonville. Send me an answer by the bearer, MR. COLLINS, with whom you may converse freely."

Judy