| Capt. J. W. Raymond | 17 Dec 67 | 11 Apr 68 |
| 1st Lt. Youngston | 12 Apr 68 | 27 Jul 68 |
| 1st Lt. C. W. Myllymaki | 28 Jul 68 | 1 Oct 68 |
| 1st Lt. R. 0. Weddle | 2 Oct 68 | 15 Oct 68 |
| 1st Lt. T. E. Watson | 16 Oct 68 | 16 Oct 68 |
| Capt. R. W. Holm | 17 Oct 68 | 14 Jan 69 |
| 1st Lt. S. C. Jones | 15 Jan 69 | 24 Feb 69 |
| 1st Lt. G. S. Martinez | 25 Feb 69 | 30 Apr 69 |
| Capt. C. E. Long | 1 May 69 | 14 Jul 69 |
| 1st Lt. C. D. Moore | 15 Apr 69 | 17 Oct 69 |
| 1st Lt. H. P. Rathmell | 18 Oct 69 | 19 Nov 69 |