The roster of the 1st SC Mounted Reserves contains only 1 name. It probably belongs with the 1st SC Mounted Militia.
This regiment may have been formed early in 1861 or previously. In Rivers Account of the Raising of the Troops for State and Confederate Service he has the following statement:
The State troops that had been called down to Charleston relieved the militia who had been on duty for four months. These, returning to their homes in the city, began to form new organizations for continued active service.
This would have occurred in January of 1861 concurrent with the formation of Gregg’s, Butler’s and Hagood’s First.
Martin, William E. - Rank in Colonel. Rank out Colonel.
Armstrong, J.B. - Rank in Commissary of Subsistence. Rank out Commissary of Subsistence. ASSIGNMENTS:
Attached to the Department of South Carolina, Georgia, and Florida
Rivers - Account of the Raising of the Troops for Confederate Service Sifakis - Compendium of the Confederate Armies. p. 6. Crute Units of the Confederate States Army