Battalions for Use in Current Maneuvers, AG 320.2 (6–19–41) MR-M-C, RG 407, NARA; Ltr, TAG to CG of all Armies and other addresses, 3 Dec 1941, sub: Organization of Tank Destroyer Battalions, AG 320.2 (11–17–41) MR-M-C, Tank Destroyer File, DAMH-HSO; Christopher R. Gable, The U.S. Army GHQ Maneuvers of 1941 (Washington, D.C.: Government Printing Office, 1992), pp. 174–76; Kent Roberts Greenfield, Robert R. Palmer, and Bell I. Wiley, The Organization of Ground Combat Troops, United States Army in World War II (Washington, D.C.: Government Printing Office, 1947), p. 82–84.
30 Ltr, CG, Hawaiian Dept to TAG, 26 Apr 41, sub: Reorganization of the Forces in the Hawaiian Department, AG 320.3/37, AG 320.2 (9–27–40), and Ltr, TAG to CG, Hawaiian Dept, 26 Aug 41, sub: Constitution and Reorganization of Units, Hawaiian Department, AG 320.2 (8–1–41) MR-M-C, AG 320.2 (8–1–41), RG 337, NARA; GO 53, Hawaiian Department, 1941, Hawaiian Dept, RG 338, NARA.
31 Memo, G–3 for CofS, 19 May 41, sub: Designation of Divisions, Army Corps, and Armies, G–3/45832, Division General file, DAMH-HSO; WD Cir 197, 1941; "Army Designations," Army and Navy Register, 9 Aug 1941; author's notes, The use of the word infantry in divisional designations; T/O 7, 1 Aug 1942.
32 "Lineage and Honors: History, Principles, and Preparation," Organizational History Branch, Office, Chief of Military History (OCMH), June 1962; Ltr, TAG to CG, Hawaiian Dept, 26 Aug 41, sub: Constitution and Reorganization of Units, Hawaiian Department, 24th Inf Div file, DAMH-HSO.
33 Louis Morton, The Fall of the Philippines, United States Army in World War II (Washington, D.C.: Government Printing Office, 1953), pp. 31–37.
34 Memo, G–3 for Cofs, 18 Sep 41, sub: Triangularization of Square Division to Removal of Elements for Bases, G–3/41741, AGO 320.2 (8–2–40), and Memo, G–3 for TAG, 22 Nov 41, sub: Assignment of the 121st Infantry from the 30th Division to 8th Division, G–3/43726, AGO 320.2 (8–2–40), RG 407, NARA; Ltr, TAG to CG, Third and Fourth Armies, 8 Dec 41, sub: Attachment of Three Infantry Regiments, Third Army to Fourth Army, AG 370–5 (12–8–41) MC-M-C, and Ltr, TAG to CG, Third Army, 15 Dec 41, sub: Assignment of 124th Infantry, AG 352 Inf Sch (11–27–41) MR-M-C, AG Reference files, DAMH-HSO.
35 Memo, GHQ for CG, Field Forces, 6 Jan 42, sub: Triangulating Square Division, 322.13; 22 (1–6–42), AGO 320.2 (1–6–42), RG 407, NARA.
36 Memo, OCS for G–3, no subject, 8 Jan 42, OCS/20117–124, RG 407, NARA. Memos pertaining to the reorganization of the National Guard divisions in 1942 are in National Guard Induction and Reorganization file, 1938–1942, DAMH-HSO.
37 Letters of instruction for reorganizing the National Guard divisions and divisional general orders implementing those instructions are in National Guard Induction and Reorganization file, 1938–1942, DAMH-HSO.
38 On 9 March 1942 the War Department's General Staff was reorganized and many of the functions of the five assistant chiefs of staff (G–1 to G–4 and the War Plans Division) were realigned. Much of the responsibility for organizing and training combat units, formerly held by the G–3, was passed to Army Ground Forces (AGF), and the Operations Division (OPD), formerly the War Plans Division, focused on the employment of units. All three, G–3, AGF, and OPD, however, would continue to deal with divisional organization during World War II.
39 Francis D. Cronin, Under the Southern Cross, The Saga of the Americal Division (Washington, D.C.: Combat Forces Press, 1951), pp. 4–29; Ltr, TAG to CG, U.S. Army Forces in New Caledonia, 24 May 42, sub: Constitution and Organization of AMERICAL Division, 24 May 42, AG 320.2 (5–23–42) MR-M-OPD; and GO 10, US Army Forces in New Caledonia, 1942, 23d Infantry Division file, DAMH-HSO.
40 Memo, Lesley J. McNair for CG, Field Forces, 2 Feb 42, sub: Field artillery organization. triangular division, 320.2/37 (FA)-F (2–2–42), McNair Papers; T/O 7–11, Infantry Regiment, 1942. On 9 March 1942 the chiefs of the combat arms were abolished as a part of the reorganization of the General Staff (see Hewes, From Root to McNamara, pp. 67–76).
41 T/O 7, Infantry Division, 1942.
