Hello -
Robt. C. Wood's Mississippi Cavalry Regiment was quite active in concert with Col. John Griffith; he mentions it repeatedly in his report re Concord Church battle (see URL below).
Griffith commanded Wirt Adam's Cavalry Brigade there in Mississippi for a period of time during 1864-65.
Can give you additional info in future postings when I get the chance.
y.o.s.,
Kenneth Byrd