< to May • June 1865
Commanded by Major General Winfield S. Hancock
The Department was abolished at the end of June. Muster out dates are included to show the fate of the units.
Second Provisional Division |
Brevet Major General James R. Brooke | |
| First Brigade | ||
| 144th Indiana Infantry Regiment | mustered out 8/5 | |
| 146th Indiana Infantry Regiment | mustered out 8/31 | |
| 150th Indiana Infantry Regiment | mustered out 8/5 | |
| Second Brigade | ||
| 191st Ohio Infantry Regiment | Colonel Robert L. Kimberley | mustered out 8/27 |
| 192nd Ohio Infantry Regiment | Colonel Francis W. Butterfield | mustered out 9/1 |
| 193rd Ohio Infantry Regiment | Colonel Eugene Powell | mustered out 8/4 |
| 196th Ohio Infantry Regiment | Colonel Robert P. Kennedy | mustered out 8/4 |
Third Provisional Division |
Brevet Major General Thomas W. Egan | |
| First Brigade | ||
| 147th Indiana Infantry Regiment | mustered out 8/4 | |
| 152nd Indiana Infantry Regiment | mustered out 8/30 | |
| Second Brigade | ||
| 192nd New York Infantry Regiment | Colonel Nathan G. Axtell | mustered out 8/24 |
| 214th Pennsylvania Infantry Regiment | Colonel David B. McKibbin | mustered out 3/21/1866 |
Fourth Provisional Division |
Brevet Major General Samuel S. Carroll | |
| First Brigade | ||
| 23rd Ohio Infantry Regiment | Colonel James M.S. Comly | mustered out 7/26 |
| 36th Ohio Infantry Regiment | Colonel Hiram F. Devol | mustered out 7/27 |
| 91st Ohio Infantry Regiment | Colonel Benjamin F. Coates | mustered out 6/24 |
| 1st West Virginia Veteran Infantry | Colonel William H. Enochs | mustered out 7/21 |
| 13th West Virginia Infantry | Colonel William R. Brown | mustered out 6/22 |
| Unassigned | ||
| 1st United States Veteran Infantry | to Middle Department | |
| 2nd United States Veteran Infantry | to Washington Defenses | |
| 3rd United States Veteran Infantry | to Washington Defenses | |
Reserve Cavalry Brigade |
||
| 22nd New York Cavalry Regiment | Colonel Horatio Blake Reed | mustered out 8/1 |
| 12th Pennsylvania Cavalry Regiment | mustered out 7/20 | |
| 18th Pennsylvania Cavalry Regiment | to 3 Prov. Cav. 2/24 | |
| 1st Rhode Island Cavalry Regiment | mustered out 8/3 | |
| 2nd United States Cavalry Regiment | to regular army | |
Artillery Brigade |
||
| 17th Indiana Battery | to Indiana to muster our 6/19 | |
| 1st Maine Battery | mustered out 7/15 | |
| 5th Maine Battery | to Augusta to muster out 6/21 | |
| 5th New York Independent Battery | mustered out 7/6 | |
| 1st Rhode Island Artilery, Battery D | mustered out 7/17 | |