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Organized at Camp Kearny, California, in the early part of Aug., 1918. The 21st and 32d Regular Army Infantry Regiments were ordered to Camp Kearny as a part of this division and these two regiments furnished the nucleus for the organization of the other infantry regiments of the division. The artillery brigade was organized on Sept. 13, 1918, from the 301st and 302nd Regiments of cavalry. The engineer regiment was organized at Camp Humphries, Va., on Sept. 28, 1918, and joined the division at Camp Kearny and by the 1st of Oct., 1918, the division was undergoing intensive training in preparation for service overseas. Demobilization of the division was commenced in the middle of February and all organizations not belonging to the Regular Army were demobilized by March 8, 1919.
Maj. Gen. David C. Shanks was the commanding general.
The division was composed of the following organizations: 16th Hqs. Troops; 31st, 32d Inf. Brigs.; 31st, 81st, 32nd, 82nd Inf.; 46th, 47th, 48th Machine Gun Bn.; 16th Field Arty. Brig. (46th, 47th and 48th Fld. Arty., 16th Trench Mortar Battery); 216th Engr. Regt. And Train; 216th Fld.Sig. Bn.; 16th Train Hqs. And M.P.; 16th Amm Train; 16th Sanitary Train (Field Hospitals and Amb. Cos. Nos. 261, 262, 263, and 264).
Popularly known as the "Thunderbolt Division." A distinctive shoulder insignia was not adopted. Organized at Camp Beauregard, Alexandria, La., in the early part of August, 1918. The 5th and 29th Regular Army Infantry Regiments were ordered to Camp Beauregard as a part of this division and these two regiments furnished the nucleus for the organization of two other infantry regiments of the division. The artillery brigade of the division was organized at Camp Bowie, Texas, and never actually joined the division at Camp Beauregard. The engineer regiment of the division was organized at Camp Humphries, Va., and joined the division at Camp Beauregard on Nov. 7, 1918. The majority of the units of the division were organized by the 1st of November and underwent intensive training in preparation for service overseas. Demobilization of the division was begun on Jan. 18, 1919, and all organizations not belonging to the Regular Army had been demobilized by Jan. 31, 1919.
Commanders of the division: Col. H. E. Jackson, Aug. 6, 1918, to Sept. 1, 1918; Col. James A. Irons, Sept. 1 to Nov. 1, 1918; Brig. Gen. Robert W. Mearns, Nov. 1, 1918 to Jan. 8, 1919; Maj. Gen. Henry C. Hodges, Jr. Jan. 8, 1919 until demobilization.
The division was composed of the following organizations: 17th Hqs. Troops; 33d, 34th Inf. Brigs.; 5th, 83d, 29th 84th Inf.; 49th, 50th, 51st Machine Gun Bn.; 17th Arty. Brig. (49th, 50th, 51st Fld. Arty., 17th Trench Mortar Battery); 217th Engr. Regt. And Train; 217th Fld. Sig. Bn.; 17th Train Hqs., and M.P.; 17th Supply Train; 17th Amm. Train; 17th Sanitary Train (Field Hospitals and Amb. Cos. 265, 266, 267 and 268).
Insignia, the figure "18" superimposed on a green cactus plant, under which is written "Noli me tangere." Organized at Camp Travis, Texas on August 21, 1918. The 19th and 35th Regular Army Infantry Regiments were assigned to this division and these regiments furnished the nucleus for the organization of the other two infantry regiments of the division. The artillery brigade of this division was organized at Camp Stanley, Leon Springs, Texas, on August 14, 1918., from the 303d, 304th and 305th National Army Cavalry Regiments. This brigade joined the 18th Division at Camp Travis at the end of August. The engineer regiment of the division was organized at Camp Humphries in the early part of September, 1918, and joined the division at Camp Travis on November 9, 1918. All units of the division except the engineer train were organized by the middle of October and undergoing intensive training in preparation for service overseas. Demobilization of the division commenced on January 17, 1919, and demobilization of all organizations except those belonging to the Regular Army was completed of February 14, 1919.
Brigadier General G. H. Estes was the commanding general.
The division was composed of the following organizations: 18th Hqs. Troop, 52d Machine Gun Bn., 35th Inf. Brig. (19th and 85th Inf., 53d Machine Gun Bn.), 36th Inf. Brig. (35th and 36th Inf, 54th Machine Gun Bn.), 18th Fld. Arty. Brig. (52d, 53d, and 54th Fld. Arty., 18th Trench Mortar Battery), 218th Engrs., 18th Train Hqs., and M.P., 18th Amm. Train, 18th Supply Train, 18th Sanitary Train (Field Hospitals and Amb. Cos. No. 269, 270, 271 and 272).
Popularly known as the "Twilight Division." Insignia, black triangle with white tips on a red circle on a khaki ground. Organized at Camp Dodge, Iowa, September 1, 1918. The 2d and 14th Regular Army Infantry Regiments were assigned to this division and these regiments furnished the nucleus for the organization of the other two infantry regiments of the division. The artillery brigade of the division was organized at Camp Bowie, Texas, on August 14, 1918, from the 307th and 309th National Army Cavalry Regiments. In the early part of October the artillery brigade was ordered to Fort Sill, Okla., for training at the Field Artillery Brigade Firing Center. The brigade never actually joined the division at Camp Bowie. The engineer regiment was organized at Camp Humphreys, Va., on September 26, 1918. It remained in training at Camp Humphreys until the first of November when it joined the division at Camp Dodge. All other units of the division were organized and undergoing intensive training by the end of October and at the time of the signing of the armistice, the division was being rounded into shape for service overseas. Demobilization of the division was commenced on January 23, 1919, and all organizations not belonging to the Regular Army were demobilized by January 29, 1919.
Commanders of division: Col. W. C. Bennett, September 1, 1918 to September 26, 1918; Col. Armand I. Lasseigne, September 26 to Oct. 25, 1918; Brig. Gen. Benjamin T. Simmons, Oct. 25, 1918, until demobilization.
This division was composed of the following organizations: 19th Hqs. Troop, 55th Machine Gun Bn., 37th Inf. Brig., (14th and 87th Inf., 56th Machine Gun Bn.), 38th Inf. Brig. (2nd and 88th Inf., 57th Machine Gun Bn.), 19th Fld. Arty. Brig. (55th, 56th and 57th Fld. Arty.), 19th Trench Mortar Battery, 219th Engr. Regt. And Train, 19th Train Hqs. And M.P., 19th Supply Train, 19th Amm. Train, 19th Sanitary Train (Field Hospitals and Amb. Cos. Nos. 273, 274, 275 and 276).
Organized at Camp Sevier, S.C., on Aug. 12, 1918. The 48th and 50th Regular Army Infantry Regiments were assigned to this division and these regiments furnished the nucleus for the organization of the other two infantry regiments of the division. The artillery brigade of the division was organized at Camp Jackson, S.C., and never actually joined the division at Camp Sevier. The organization of the division was about completed at the end of October and all units were undergoing intensive training in preparation for overseas service. All organizations not belonging to the Regular Army were demobilized by Feb. 28, 1919.
Commanders of division: Col. Louis J. VanSchaick, Aug. 9 to Aug. 18, 1918; Col. Lawrence B. Simonds, Aug. 18 to Aug. 27, 1918; Col. Wm. F. Grote, Aug. 27 to Sept. 30, 1918; Brig. Gen. F. Leroy Sweetser, Sept. 30th until demobilization.
This division was composed of the following organizations: 20th Hqs. Troop; 39th, 40th Inf. Bn.; 48th, 89th, 50th, 90th Inf.; 58th, 59th 60th Machine Gun Bns.; 20th Fld. Arty. Brig. (58th, 59th, 60th Fld. Arty., 20th Trench Mortar Battery); 220th Engr. Regt. And Train; 20th Amm. Train; 20th Sanitary Train (Field Hospitals and Amb. Cos. Nos. 277, 278, 279, and 280).