Buy or get one of these two books via InterLibrary Loan from your local library. (They're two versions of the same book, with one having some additional info added at the end.)

"Pike County, Mississippi, 1798-1876: Pioneer Families and Confederate Soldiers, Reconstruction and Redemption," by Luke Ward Conerly

OR

"Source Records from Pike County, Mississippi, 1798-1910," by E. Russ Williams (which is the updated version and more widely available).

Both have a good bit on the Holmesville Guards. -- Jim Huffman, 43rd MS