Chapter II.
STATUTORY AND ACTUAL STRENGTH OF THE MARINE CORPS
ON VARIOUS DATES.
STATUTORY STRENGTH.
The act of Congress of August 29, 1916, increased the authorized strength of the Marine Corps from 344 officers and 9,921 enlisted men to 597 officers and 14,981 enlisted men, and the President was authorized in an emergency to further increase the corps to 693 officers and 17,400 enlisted men, which he did by Executive order on March 26, 1917.
On April 6, 1917, Congress declared “that a state of war exists between the United States and the Imperial German Government” and one and one-half months later, on May 22, 1917, temporarily increased the authorized strength to 1,197 commissioned officers, 126 warrant officers, and 30,000 enlisted men. Finally, the act of July 1, 1918, temporarily increased the Marine Corps to 3,017 commissioned officers, 324 warrant officers, and 75,500 enlisted men, which is the maximum strength ever authorized for the Marine Corps. Of this number 17,400 were permanent and 57,650 temporary. In addition to the above, the act of August 29, 1916, which established the Marine Corps Reserve, permits the enrollment of reserves without limit as to number, and on April 6, 1917, there were enrolled, subject to call to active duty, three Reserve commissioned officers, 24 National Naval Volunteer officers, 36 Reserve enlisted men, and 928 enlisted National Naval Volunteers. There were also available for recall to active duty 65 regular retired commissioned officers, one regular retired warrant officer, and 210 regular retired enlisted men.
ACTUAL STRENGTH OF THE MARINE CORPS AT THE BEGINNING AND END OF THE WAR.
On April 6, 1917, the strength of the Marine Corps on active duty was as follows:
On November 11, 1918, the strength of the Marine Corps on active duty was as follows:
| Regular commissioned officers: | |
| Major General Commandant | 1 |
| Major generals | 2 |
| Brigadier generals | 13 |
| Colonels | 43 |
| Lieutenant-colonels | 52 |
| Majors | 199 |
| Captains | 522 |
| First lieutenants | 436 |
| Second lieutenants | 413 |
| Total Regular officers | 1,681 |
| Commissioned retired officers: | |
| On active duty | 43 |
| Reserve officers on active duty: | |
| Majors | 7 |
| Captains | 33 |
| First lieutenants | 63 |
| Second lieutenants | 360 |
| Total Reserve officers | 463 |
| Total commissioned officers on active duty | 2,187 |
| Regular warrant officers: | |
| Marine gunners | 109 |
| Quartermaster clerks | 89 |
| Pay clerks | 56 |
| Total | 254 |
| Reserve warrant officers: | |
| Marine gunners | 27 |
| Quartermaster clerks | 2 |
| Pay clerks | 4 |
| Total | 33 |
| Total warrant officers on active duty | 287 |
| Total officers on active duty | 2,474 |
| Enlisted personnel: | |
| Regular | 63,714 |
| Retired enlisted men on active duty | 15 |
| Reserves, on active duty | 6,483 |
| Female reservists, on active duty | 277 |
| Total | 70,489 |
| Total strength on active duty | 72,963 |
On December 11, 1918, the Marine Corps attained its maximum strength on active duty, which was distributed as follows:
| Regular commissioned officers | 1,678 |
| Retired officers on active duty | 44 |
| Reserve commissioned officers | 452 |
| Regular warrant officers | 257 |
| Reserve warrant officers | 31 |
| Regular enlisted men | 65,666 |
| Reserve enlisted men | 6,704 |
| Female reservists | 269 |
| Total | 75,101 |
The maximum enlisted strength of the regular Marine Corps, not including reserves, during the period between the outbreak of war and the date the armistice became operative was 63,714 on November 9, 1918.