See List of Fourth Division Units
First Commander: Brigadier General William Yarnel Slack
Second Commander: Colonel Benjamin A. Rives, M.D.
Third Commander: Major General David Rice Atchison
Fourth Commander: Brigadier General William Yarnel Slack
Fifth Commander: Major General John Taylor Hughes
| Division Adjutant-General: | Colonel Aaron H. Conrow |
| Division Comissary of Subsistence: | Lt. Colonel D. H. McDonald |
| Division Inspector-General: | Lt. Colonel Benjamin J. Brown |
| Lt. Colonel James W. Buchanan | |
| Lt. Colonel William Keith | |
| Division Judge Advocate-General: | Lt. Colonel H. W. Lyday |
| Division Paymaster-General: | Lt. Colonel William Perry |
| Division Quartermaster-General: | Lt. Colonel William Hill |
| Division Surgeon-General: | Lt. Colonel Peter Austin, M.D. |
| Aides-de-Camp | Lt. Colonel William E. Walker |
| Lt. Colonel Walter Scott | |
| Lt. Colonel J. J. Harris | |
| Acting Aides-de-Camp: | Captain Finley L. Hubbell |
| Captain O. H. Harris | |
| Drillmaster: | Captain John J. Corkery |
First Division | Second
Division | Third Division | Fourth
Division
Fifth Division | Sixth Division | Seventh Division | Eighth Division
Ninth Division