Here is the only Everett I find in the 5th Florida. Further more, I cannot locate a Miles Everett or variants [Everitt, Miles/M] in Confederate Army rosters,
Where do you find the information you referenced?
Benjamin F. Everitt/Everett, Private, Company I, 5th Battalion Florida Cavalry, enlisted April 18, 1864 at Marianna, Fla. for the war, recorded present at the May 5, 1865 muster held at Preston, Fla., surrendered May 11, 1865 at Quincy, Fla., paroled May 23/3
Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Florida