Updated Philippine OOB for 1941

[HistoryGuy]

PHILIPPINE OOB Data Sheet #2

Pre-war the 1st "Regular" Division consisted of two organized units - a single infantry battalion and one troop of cavalry - stationed in Manila and used as ceremonial troops. All the rest of the regular army was dispersed in training units, depots, and HQ detachments.

Until the legal limit on Philippine Scouts was expanded in 1940, the small garrisons at Baguio and Zamboanga were formed from a battalion of the 45th Infantry (PS). With the increased size (to 12,000 if memory serves), these four companies were detached from the 45th and used to form the 43rd Infantry (PS). A new battalion was formed to bring the 45th up to strength - consolidated around Manila.

45th Infantry Regt –
Regimental XO, 45th Infantry (PS) – Col Donald B. Hilton
1 – 45 Infantry (PS) – Ltc Leslie T. Lathrop
2 – 45 Infantry (PS) – Capt Arthur C. Biedenstein/Ltc Ross B. Smith
3 – 45 Infantry (PS) – Maj Dudley G. Strickler (KIA)/Capt Clifton A. Croom

The mini "Battalion" HQs were established, with companies A and B at Baguio and companies C and D at Zamboanga.

The Baguio unit was fragmented, with most of the unit attempting to withdraw with Col. Horan and the rest joining Troop C of the 26th Cavalry to become guerillas. Very few of Col Horan's detachment made it to Bataan. Most were lost or melted away into the jungle - many resurfacing later in guerilla units.

The Zamboanga unit was attached to the 101st Division - first as advisors at various levels and later consolidated as (I believe) a component of the 102nd Division. A personal memoir of one of the company commanders - (then) Captain John H. McGee - details most of this. NOTE: RICE AND SALT first published in 1962.

Theoretical MTOE for Philippine Army Reserve Divisions (Source: War Plan Orange 3 dtd April 1941), See Enclosure 2, Exhibit B, pp. 1 – 2

Division total strength
444 Officers
7199 Enlisted

Division Headquarters – 18/33 (with 21 pistols and 28 rifles)
HHC, Service Troops – 14/126 (with 26 pistols and 110 rifles)
Motor Transport Bn – 10/320 (14 pistols, 149 rifles, 4 thirty caliber MGs, 85 requisitioned trucks)
Medical Bn – 28/463 (2 pistols)
Engineer Bn – 22/432 (44 pistols, 394 rifles, 16 BARs)
Signal Company – 3/90 (9 pistols and 84 rifles)
X3 Infantry Regiment (each) – 92/1620 (107 pistols, 1437 rifles, 36 BARs, 2 fifty caliber MGs, six 3-inch mortars, 24 thirty caliber MGs)

Note 1: each infantry battalion has 24/455 (29 pistols, 422 rifles, 12 BARs, 8 thirty caliber MGs). Battalions include three rifle companies, a machinegun company, and a headquarters company.

Note 2: Regimental Combat Company has 3/75 (4 pistols, 66 rifles, six 3-inch mortars, and 2 fifty caliber MGs)
Field Artillery Regiment – 57/742 (78 pistols, 688 rifles, eight 2.95 inch howitzers (1st Bn); sixteen 75-mm cannon (2d and 3d Battalions)

Note 3: In original plan the FA Regt was supposed to have a 2.95-inch Bn, 81-mm Bn and AAA Battalion (4 x fifty caliber and 4 x thirty caliber MGs)

PAAC Provisional Infantry Battalion – Maj Pelagio Cruz


1st Philippine Army (Regular) Infantry Division – Brig. Gen. Fidel V. Segundo (later Brig Gen Kearie L. Berry)
Chief of Staff – Lt Col Santiago Guevera
Senior US Instructor – Maj. Ralph E. Rumbold
1st Infantry Regiment –Maj Alfredo M. Santos, later Maj O.S. McCollum, Col K.L. Berry
Senior US Instructors – Capt Eugene Laird, Capt Kassell
S-2 – Lt. Alfredo Filert
1-1 Inf – Lt Godofredo F. Mendoza, later Capt Alfredo M. Santos
2-1 Inf – Capt Honorato Ramos
3-1 Inf – Lt Felicisimo Aguinaldo
2d Infantry Regiment – (remained on Mindanao due to lack of shipping) Col. Calixto Duque
3d Infantry Regiment – Capt Vivencio Orias Note: formed 19 December 1941. Later Lt Col K.L. Berry (5 Jan 42)
Senior Instructor – Lt Col Kearie L. Berry (RA)
Other U.S. Instructors – Maj Howard Hinman, Capt Harold Stevenson (USAR)
1st Artillery Regiment – Not activated
1st Engineer Battalion – Capt Adamin A. Tallow

Note 1: This division was reconstituted on 19 December 1941 from officer cadets, retired Philippine scouts, and odds and ends.
Note 2: 2d Regiment’s strength in March 1942 was 800 officers and men.
Note 3: In April 1942 the divisional strength included 225 officers and 4300 enlisted men.

2d Philippine Army (Regular) Infantry Division (PC) – Brig. Gen. Guillermo B. Francisco
2d Philippine Army (Regular) Infantry Division (PC) – Brig. Gen. Guillermo B. Francisco
2d Division US Senior Instructor – Col. Edwin O’Connor
G -1 – Ltc Elias Dioquino
G- 2 – Ltc Pio Q. Caluya
G- 3 – Ltc Pacifico Sevilla
G-4 – Col Alberto Ramos
Note: 1st and 2nd PC Regiments initially assigned to 51st Provisional Brigade (PA) on 20 Dec 41. The brigade was commanded by Brig. Gen. Simeon de Jesus.

1st Philippine Constabulary (PC) Regiment – Ltc. Mariano N. Casteñada.
US Senior Instructor – Lt. Col. Irvin Alexander
Hqs Bn – 1 Constabulary – Capt Teodorico Apil
1 – 1 Constabulary – Capt Jose Tando
American Instructor –Capt Manneschmidt
Company A – 1Lt Ramon Delfin (WIA)/2Lt Tomas Alcasid
Company B – 1Lt Jesus L. Gonzalez
Company C – 1Lt T. Caguioa
Company D – Capt Amado S. Lagman
2 – 1 Constabulary – Capt Macario Negrosa
Company E – 1Lt Porfirio Carangdang
Company F – 1Lt Miguel K. Pingul
Company G – 1Lt Rufino J. Palma
Company H – 1Lt Lucas Cauton
3 – 1 Constabulary – Capt Apolinar G. Fajardo
Company I – 1Lt Dioscoro Ragrario
Company K –
Company L –
Company M –
2nd Philippine Constabulary Regiment – Ltc Manuel V. Atanacio/Ltc Arthur Noble
1 – 2 Constabulary – Maj. Jose A. Arambulo/ Maj. Daniel Alvarado
Company A – 1Lt Rizalino M. Garcia
Company B – 1Lt Amado B. Baroquillo
Company C – 1Lt Ramon Centeno
Company D – 1Lt Vicente Albarillo
2 – 2 Constabulary – Maj. Daniel Alvarado/Maj. Diogracias U. Tenazas (formerly Regt XO)
3 – 2 Constabulary – Capt Miguel Capistrano/Maj Eleuterio de Leon
4th Philippine Constabulary Regiment – Ltc Rafael Jalandoni (created by merging provincial PC units on 2 Jan 42)
Senior instructor – Ltc Frank Lloyd
Hqs Bn – 4 Constabulary – Jalandoni (formed 6 Jan 42)
1 – 4 Constabulary – Maj Manuel Turingan (Malacanan Guards and elems of PC General Service Troops)
2 – 4 Constabulary – Maj Godofredo Monsod (Bulacan, Nueva Ecija, Pampanga, Tarlac, and Baler PC Companies/Detachments)
3 – 4 Constabulary – Maj Eustaquio Lomuntad (Pagasinan PC companies augmented by troops from Northern and Southern Luzon)
2nd FA Regiment – Ltc Bienvenido M. Alba (former PS CAC Officer & first Filipino USNA graduate)
FA Regiment later redesignated as 2nd Heavy Weapons Regiment.
1 – 2 FA Bn – Capt Alfonso Roberto/ Capt Sixto de los Santos (replaced WIA predecessor)
2 – 2 FA Bn – Capt Pedro S. Vinluan
3 – 2 FA Bn – 1Lt Estanislao Baltazar
4 – 2 FA Bn (Prov) – Maj. Luis Villareal Note: attached to division from 21st FA Regt in March 42.
BatteryG/4 – 2 FA – 1Lt Victor Juan Jr.
Battery H/4 – 2 FA – 1Lt Estaban Baltazar
2nd Engineer Bn – Capt Jose Bernales/Maj Vincente C. Torres Note: activated as Provisional Engineer Bn on 27 Dec 41.
2nd AT Bn – Maj Emmanuel Cepeda (USMA ’33). Activated on 25 December 41 as Provisional AT Battalion equipped with 2 x 37-mm AT guns and seventeen Bren Carriers mounting .30 and .50-caliber HMGs. One of the companies in the battalion was reorganized as a MG company.

Note 1: The 1st Regiment had been inducted into USAFFE on 15 October 1941, followed by the 2d and 3d Regiments on 17 November and 12 December 1941 respectively. The 4th PC Regiment, numbering 102 officers and 1,800 men, was assembled in early January 1942. The division possessed almost 10,000 officers and men at full strength. However, its strength shrank to 8300 officers and men by mid-January 1942. By Apr 42 the 2d Division consisted of 325 officers and 5700 enlisted men. The PC soldiers had M1903 Springfield rifles vice M1917 Enfield rifles found in PA Regiments.

Note 2: 3rd PC Regiment on Mindanao
3rd Philippine Constabulary (PC) Regiment – Ltc Francisco P. Donesa
Hqs Bn – 3 Constabulary – Capt Andres del Rosario
1 – 3 Constabulary – Maj Matias Linsangan
2 – 3 Constabulary – Maj Francisco Roska

Note 3: 2nd FA Regiment received its artillery after it arrived in Bataan: eight 2.95-inch mountain howitzers, two 3-inch naval guns on pedestal mounts, one 6-pounder naval gun on pedestal mount.


Commanding General, 11th (Reserve) Infantry Division – Brig. Gen. William E. Brougher
Chief of Staff – Col. Moran
Division Signal Officer – Lt. Col. Blackburn
G-3 – Lt Col Leonilo Tan
G-4 - Maj Budo Dangwa?
11th Infantry Regiment – Col. Glen R. Townsend (moderate competence)
11th Regiment Executive Officer – Maj. Russell W. Volckmann
1/11 Infantry –
2/11 Infantry – Maj. Helmert J. Duisterhof (awarded DSC – came from 57th Infantry)
3/11 Infantry – Capt. Antonio Alejandro
12th Infantry Regiment –
1/12 Infantry –
2/12 Infantry –
3/12 Infantry – Maj. Martin Moses
13th Infantry Regiment – Col. Green (?)
1/13 Infantry – Maj. Arthur Noble
2/13 Infantry –
3/13 Infantry –
14th Infantry (created Feb 42) – Lt Col Guillermo Z. Nakar (initial o/h strength 62 Officers and 960 EM with 143 Constabulary attached)
11th Field Artillery Regiment – Col. James C. Hughes
11th Engineer Battalion – Capt. Amado N. Bautista

Note 1: 13th Infantry Regiment disbanded early in the Philippine campaign to provide replacements for 11th and 12th Regiments.

Note 2: Amado Bautista Diary, dtd 4 Feb 46, states: “On 7 December, the 11th Division headquarters was being organized at Manaoag, Pangasinan. The 11th Division sector was as follows: From Calmay River exclusive, Dagupan and Calasiao inclusive, Malasiqui exclusive, Alcala inclusive, extending northward along Union Shores and Ilocos Coast and with an outpost of one infantry battalion at Tuguegarao, Cagayan. The main strength was concentrated at Pangasinan. The 11th Engineer Battalion, mobilized and fully activated about two months before, was in division reserve at Camp Carayungan, less Company C at Manaoag. [Engineer] Units in full strength, almost completely equipped organically, but with only five rounds of ammunition per man borrowed from the Constabulary Company at Tuyag.”

Commanding General, 21st (Reserve) Infantry Division – Brig. Gen. Mateo M. Capinpin
CG aide de camp – 1st Lt Primavito San Augustin
G-2 Lt Ferdinand Marcos
Senior American Instructor – Colonel Ray M. O’Day
21st Infantry Regiment – Lt. Col. Melanio Velasco
21st PA Regt Senior Instructor – Col. William A. Wapperstein
1/21 Infantry – Maj. Robert Besson
2/21 Infantry – Capt. Philip A. Meier
3/21 Infantry – Capt. Robert Pennell
22d Infantry – Major Joaquin D. Espiritu
22d Infantry US Senior Instructor – Col. Jacob E. Uhrig
1 – 22 Infantry
2 – 22 Infantry
3 – 22 Infantry – 3Lt Francisco Joves
23d Infantry – Major Liberato Littaua
US Senior Instructor – Col. Wallace A. Mead
3/23 – Capt. H.E. Wandell
21st Artillery Regiment – Lt. Col. Nemisio Catalan (three battalions of 75-mm cannon vice 2 battalions of 75-mm and one battalion of 2.95-inch mountain howitzers)
Regimental XO – Capt Luis A. Villa-Real
21st FA Senior US Instructor – Col. Richard C. Mallonée
Regimental Signal Officer – Maj Stanley B. Bonner
1/21 FA – Lieutenant Valdez
2/21 FA – Lieutenant Mercado
3/21 FA – Lieutenant Acosta
21st Engineer Battalion – Capt. Atilano F. Montesa (KIA)/Capt. Louis Bartholomees
Note 1: The 21st Infantry Division “acquired” six modern 81-mm mortars from the Field Artillery School at Camp Del Pilar.

Commanding General, 31st (Reserve) Infantry Division – Brig. Gen. Clifford Bluemel
Chief of Staff – Col. Pastor Martelino
G-1 – Lt. Col. Jose Andrada
G-2 – Maj. Salvador T. Villa
G-3 – Maj. Pedro Deang
G-4 – Maj. Napoleon D. Valleriano
Motor Transport Officer – Capt Ramon Magsaysay
31st Infantry Regiment – Col. John W. Irwin
1/31 Infantry –
2/31 Infantry – Lt. Col. Cyril Q. Marron
3/31 Infantry –
32d Infantry Regiment – Col. Edwin H. Johnson
33d Infantry Regiment – Major Stanley Holmes
1/33 Infantry – Maj. Howard C. Crawford
2/33 Infantry – Capt. Lloyd M. Buchel
3/33 Infantry – Capt. Robert M. Chapin
31st Artillery Regiment –

Note 1: On the average, there was only a single Browning Automatic Rifle in each infantry company, only eight 30-caliber water cooled machineguns in each heavy weapons company, and two 50-caliber machineguns for each regiment. There were no modern 81-mm mortars, only the 3-inch Stokes mortar of WW1 vintage. It was estimated that the 3-inch mortars had a seventy percent dud rate. Ammunition for the division’s 60-mm mortars was never delivered.

Note 2: The 31st Field Artillery Regiment did not finish organizing until 26 December 1941 and possessed only two 75-mm gun batteries.

Commanding General, 41st (Reserve) Infantry Division – Brig. Gen. Vicente P. Lim
Senior American Instructor – Colonel Malcolm V. Fortier
Aide de camp – 3d Lt Ernesto Santos
G-1 – Capt Mamerto R. Montemayor
G-2 – Capt Isagani V. Campo
G-3 – Capt Dionisio Ojeda
G-3 Advisor - Lt Col Peter Calyer
G-4 – Cpt Jose Montelibano
Medical Bn – Maj Hospicio L. Solidum
41st Infantry Regiment – Lt. Col. Silvino Gallardo
Senior American advisor – Col. Loren A. Wetherby
1/41 Infantry – Capt. Jacobo Zobel
2/41 Infantry – Capt Delfin E. Argao
3/41 Infantry – Capt Cornelio Maraiano
42d Infantry Regiment – Lt. Col. Claro B. Lizardo
Senior American advisor – Col. Edward C. Atkinson
1/42 Infantry – Capt Jose R. Razon
2/42 Infantry – Capt Artemio Rillo
3/42 Infantry – Capt Amado Magtoto
43d Infantry Regiment – Lt Col Emmanuel Baja
Senior American advisor – Lt. Col Eugene T. Lewis
1/43 – Capt Salvador T. Piccio
2/43 – Lt Demetrio Mendoza
3/43 – Capt Adolfo Castillo
41st Artillery Regiment – Lt Col Amado Martelino
41st FA Senior Advisor – Lt Col. Arthur P. Moore
41st Engineer Battalion – Capt. Manuel S. Tinio

Note 1: The division’s regiments had received the following amount of post-mobilization training: 41st (five weeks), 42d (thirteen weeks), and 43d (none).

Note 2: Three BARs issued to each rifle company. The only anti-tank armament in the division consisted of 50-caliber water cooled machineguns (M-52 with 36-inch barrel) that none of the American advisors were familiar with. The division had its full complement of sixteen 75-mm cannon and eight 2.95-inch mountain howitzers.

Commanding General, 51st (Reserve) Infantry Division – Brig. Gen. Albert M. Jones
Chief of Staff – Col. Stuart C. MacDonald/Col. Edwin E. Aldridge
51st Infantry Regiment – Col. Loren P. Stewart
52d Infantry Regiment – Colonel Virgil N. Cordero (two battalions)
53d Infantry Regiment – Col. John R. Boatwright
1/53 Inf –
2/53 Inf –
3/53d Inf – Maj Elliot C. Babcock
51st Field Artillery Regiment – Col. Hamilton R. Searight
Note 1: The FA regiment only possessed two batteries of 75-mm cannon.

Commanding General, 61st (Reserve) Infantry Division – Brig. Gen. Bradford G. Chenowyth (he replaced Brig. Gen. Walter F. Sharp)
Chief of Staff – Col. John W. Thompson (replaced by Col. Irvin C. Scudder when Brig. Gen. Chenowyth arrived before Scudder was himself replaced by Col. Roger Hilsman)
G-1 – Lt. Col. Lope Quial
G-2 – Lt. Col. Nicanor Velarde
G-3 – Maj Macario Peralta
G-4 – Lt Col William Gemperle
Division Engineer – Maj Claude Fertig
61st Infantry Regiment – Col. Eugene H. Mitchell
62d Infantry Regiment – Lt. Col. Allen P. Thayer (Fitzgerald says 61st Regt Cdr)
63d Infantry Regiment – Col. Albert F. Christie
64th Infantry Regiment (PA) (Provisional) –
65th Infantry Regiment (PA) (Provisional) –
61st Engineer Battalion – Lt Col Leopoldo Relunia
61st Artillery Regiment – Col. Hiram W. Tarkington
One battery with three 2.95-inch mountain howitzers?? (per memorandum for record by Lt. Eugene E. Greeson, Subj: “The Visayan-Mindanao Force”, dtd 30 Jan 45, filed at CMH)

Cebu Military Police Regiment – Lt. Col. Howard J. Edmunds (ultimately consisting of eleven companies [one regimental HHC, two battalions with eight rifle and two heavy weapons companies] with strength ranging from 114 to 89 personnel. They possessed Enfield Rifles and four Browning Water-cooled MMGs per company – the weapons were requisitioned from the four college “ROTC” detachments on Cebu). Heavy Weapons Companies: Company D had eight 30-caliber water cooled, one .50-caliber machinegun and two Stokes mortars. Company H (formed from a cadre from Company D (heavy weapons) possessed three water cooled and five air cooled .30-caliber machineguns (the latter were salvaged from a crashed P-40 Warhawk).

Commanding General, 71st (Reserve) Infantry Division – Brig. Gen. Clyde A. Selleck (later relieved by 26th Cavalry Regiment commander)
Chief of Staff – Col Saldivor F. Reyes
71st Infantry Regiment – Lt. Col. Donald Van N. Bonnett
1/71st Infantry – Capt Guillermo Z. Nakar
2/71st Infantry –
3/71st Infantry –
72d Infantry Regiment – Lt. Col. Irwin Compton (vice Col Virgil N. Cordero?)
73d Infantry Regiment – (remained on Mindanao due to lack of shipping) Lt. Col. Robert H. Vesey
71st Artillery Regiment – Lt. Col. Halstead C. Fowler (detached to support 1st Division in January)

Commanding General, 81st (Reserve) Infantry Division – Brig. Gen. Guy S. Fort
G-? Lt Col Alejandro Suarez
81st Infantry Regiment – Lt Col Ruperto K. Kangelon (Fitzgerald)
82d Infantry Regiment – Lt. Col. David
1/82d Infantry – Capt. Mammon Sharp
2/82d Infantry –
3/82d Infantry –
83d Infantry Regiment – Maj. William Rogers
1/83d Infantry – Maj. William McClanahan (replaced by Capt. Lyle Hardin)
2/83d Infantry – Capt. Sharp (?)
3/83d Infantry – Lt. Col. Arthur J. Grimes
84th Infantry Regiment (Provisional) –
81st Artillery Regiment – Lt. Col. John P. Woodbridge
3d Philippine Constabulary Regiment – Brig Gen Simeon de Jesus

Note 1: The “Visayan – Mindanao Force” (commanded by Col. Ben-Hur Chastaine) consisted of 3rd Infantry Regiment (Philippine Constabulary), 81st Infantry Regiment (Philippine Army), Co. A, 81st Medical Battalion, Agusan Provisional Battalion (PA), Agusan Constabulary Battalion, Surigao Provisional Battalion (PA & PC) and Headquarters (Provisional) Agusan Sector (PA). The PC Regiment was responsible for defending Cagayan and the PA Regiment (-) responsible for Davao. The 3/81 Infantry (Capt. J.O. Stensland) and Agusan Provisional Battalion defended Butuan Bay. The Surigao Provisional Battalion defended the Surigao Peninsula. The Agusan Constabulary Battalion controlled the movement of the civilian population and conducted rear area security. Source: Operations Order, USAFFE, Hqs Agusan Sector, Gingoog, Misamis, SUBJ: War Plans – Agusan Sector, dtd 27 Feb 42. Original at CMH.
Note 3 – The 81st Artillery Regiment had at least one section of 2.95-inch mountain howitzers.

Commanding General, 91st (Reserve) Infantry Division – Brig. Gen. Luther R. Stevens
91st Infantry Regiment – Col. Edgar A. Keltner
92d Infantry Regiment – Col. John H. Rodman
92d Infantry Executive Officer – Col. James D. Carter
93d Infantry Regiment – (remained on Mindanao due to lack of shipping) Col William F. Dalton (?)
91st Artillery Regiment –
91st Engineer Battalion – Capt. Antonio P. Chanco
C & E Companies, 43d Infantry (PS) – Maj. Allen L. Peck (reactivated and organized with soldiers from the 45th Infantry (PS) on detached duty in Zamboanga).
Note: Artillery consisted of two batteries with eight portee 2.95-inch mountain howitzers.

Commanding General, 101st (Reserve) Infantry Division – Brig. Gen. Joseph P. Vachon (replaced by Col Carter R. McLennan when former became Cotobato-Davao defense force CG)
G-2 – Capt Juan B. Guevara
101st Infantry Regiment – Col. Russell J. Nelson
1/101 Infantry –
2/101 Infantry – Lt. Col. Roger B. Hilsman
3/101 Infantry – Lt. Col. Howard N. Frissell
102d Infantry Regiment – Col. William P. Morse (?)
103d Infantry Regiment – Maj. Joseph R. Webb
104th Infantry Regiment?? – Mentioned in Morton “Fall of the Philippines” on p. 511.
101st Artillery Regiment – Lt. Col. A. Quintard

Note 1: Although some accounts state that no artillery was ever provided to the division, the trio of mountain howitzers listed for the 61st Division may have belonged to the 101st Artillery Regiment.
Note 2: Lt. Greeson writes: For the purpose of defense the island was divided into six sectors. General Vachon commanded the Cotabato-Davao sector; General Fort the Lanao sector; Col. Morse, the Cagayan sector; and Col. Ben-Hur Chastaine, the Agusan sector. The Zamboanga sector was commanded initially by Col. Dalton, but in February 1942 this command was given to Col. Wilson and Col. Dalton assumed command of the Force training school. In February a Zone of the Interior was created with Col. Frissell in command. In the Visayan Islands, General Chynoweth commanded the island of Panay; Col. Hilsman, the Island of Negros; Col. Scudder the island of Cebu; and Major Jones, the islands of Samar and Leyte.

Commanding General, 102d (Reserve) Infantry Division – Col. William P. Morse
103d Infantry Regiment (see 101st Division)
61st Artillery Regiment (see 61st Division)
81st Artillery Regiment (see 81st Division)
Note 1: Would be reorganized with the 62d Infantry, 81st Field Artillery, C & E Companies, 43d Infantry (PS) and a 2.95-inch mountain howitzer detachment after its first battle on 3 May 1942.