| No. | Vice Director | Term | Service branch | Ref(s) |
|---|
| Portrait | Name | Took office | Left office | Term length |
|---|
| 1 | | Rear Admiral
Joseph H. Wellings
(–) | 30 September | ~30 April | ~3&#;years, &#;days |
U.S. Navy | [3][4][5][6] |
| 2 | | Major General
John M. Reynolds | ~30 April | ~January | ~&#;days |
U.S. Air Force | [7][8] |
| 3 | | Major General
Ashton H. Manhart
(–) | ~January | ~January | ~3 years |
U.S. Army | [8][9] |
| 4 | | Rear Admiral
Louis Joseph Kirn
(–) | January | December | ~1&#;year, &#;days |
U.S. Navy | [10][11] |
| 5 | | Major General
John B. McPherson
(born ) | ~May | ~August | ~1&#;year, 92&#;days |
U.S. Air Force | [12] |
| 6 | | Major General
Kelsie L. Reaves
(–) | ~August | ~January | ~&#;days |
U.S. Army | [13] |
| 7 | | Major General
Charles M. Mount | ~January | ~August | ~1&#;yea
|