This is a great story, and belongs with others about Confederate body servants. Hopefully you intend to collect them for purposes of publication.
The officer named can be identified as an officer of Co. "D", 14th Mississippi Regt., and we can probably determine that he or his father owned slaves in the 1860 census. You may even be able to identify the body servant on the slave schedule by age and sex.
This is valuable because it's a contemporary newspaper account which references a specific person, specific date (more or less) and specific place. We can easily tie this to the fighting on Feb. 15th, 1862. You might recall my objections to an account in a Philadelphia newspaper which referenced an unidentified, unconfirmed battalion of black men reported by "citizens". Who or where they were and how they made this observation is anyone's guess. In contrast, there's no easy way for a nay-sayer or critic to find serious fault with accounts like this one and some of the others mentioned.