Template:FtCasey1Cmdrs
| Assumed | Relieved | Rank | Name | Cullum | Notes |
|---|---|---|---|---|---|
| 1899-09-08 | 1901-01-16 | 2d Lt. | Putnam, Alfred B. | 3875 | |
| 1901-01-16 | 1901-03-26 | 1st Lt. | Kessler, P. M. | N/A | |
| 1901-03-26 | 1901-05-15 | 2d Lt. | Pratt, Raymond B. | N/A | |
| 1901-05-15 | 1901-11-06 | 1st Lt. | Kessler, P. M. | N/A | |
| 1901-11-06 | 1902-07-19 | 2d Lt. | Kerrick, Harrison S. | N/A | |
| 1902-07-19 | 1902-08-18 | Capt. | Tracy, Joseph P. | N/A | |
| 1902-08-18 | 1902-09-22 | Capt. | Lewis, Isaac N. | 3031 | Cullum's Register has him remaining in command until October 1903. |
| 1902-09-22 | 1902-11-22 | Maj. | Williams, John R. | 2593 | |
| 1902-11-22 | 1903-10-08 | Capt. | Lewis, Isaac N. | 3031 | |
| 1903-10-08 | 1905-12-20 | Maj. | Walker, Leverett H. | 2385 | Cullum's Register gives the dates of his command as Oct. 3, 1903 to Apr. 2, 1906 but noting that he was "on leave in Japan Dec. 14, 1905 to April 2, 1906". |
| 1903-10-12 | 1904-01 | Capt. | Alexander, Walter Stone | 2766 | Dates of command are from Cullum's Register but directly contradict the dates of the preceding, also from the Register. The brief command was probably during a leave of the preceding. |
| 1905-12-20 | 1906-08-01 | Maj. | Barney, George F. | 2940 | |
| 1906-08-01 | 1906-10-26 | Capt. | Hancock, William F. | 2972 | |
| 1906-10-05 | 1907-04 | Capt. | Scott, Guy T. | N/A | |
| 1907-04 | 1907-06-15 | Lt. Col. | Niles, Lotus | 2554 | Cullum's Register has him assuming command on Feb. 12, 1907. |
| 1907-06-15 | 1907-08-02 | Capt. | Gilbert, Bertram C. | N/A | |
| 1907-08-02 | 1909-11-18 | Maj. | Hayden, John L. | 3243 | |
| 1909-11-18 | 1910-01-16 | Capt. | Geary, John T. | N/A | |
| 1910-01-16 | 1910-02-03 | Capt. | Brown, Hugh S. | N/A | |
| 1910-02-03 | 1910-03-30 | Capt. | Geary, John T. | N/A | |
| 1910-03-31 | 1911-10-19 | Maj. | Stevens, Gustave W. S. | 3131 | Promoted Lieut.‑Colonel Feb. 19, 1906 |
| 1911-10-1 | 1914-06-18 | Maj. | Hayden, John L. | 3243 | Promoted Lieut.‑Colonel Oct. 5, 1911 |
| 1915-04-11 | 1916-07-12 | Lt. Col. | Hayden, John L. | 3243 | |
| Dates are formatted in yyyy-mm-dd to sort correctly. The Cullum Number is the graduation order from the United States Military Academy by year and class rank and links to a page for the officer on the website version of the Cullum Register. Listings without a Cullum Number indicate that the person was not a graduate of the United States Military Academy. | |||||