Chapter XVIII: Appendix: C

Task Organization of Marine Division for Inchon Landing

In order to present a concise picture of the Task Organization of the 1st Marine Division (Reinf), FMF, for the period of 1 August-7 October 1950, task organizations are presented for the following five conditions:

(1) Completion of mobilization of the Division (less 1st
Provisional Marine Brigade and RCT-7) at Camp Pendleton,
Oceanside, California, 12 August.

(2) Organization for landing at INCHON, KOREA, 15 September.

(3) RCT-7 task organization on arrival INCHON, KOREA, 21
September.

(4) Intermediate temporary attachments and detachments during
the period 15 September-7 October.

(5) Completion of INCHON-KIMPO-SEOUL operation on 7 October.

The detailed Task Organizations are as follows:

(1) Completion of Mobilization on WAR “K” series T/O, 12 August.

_1st Marine Division, (Reinf) FMF_ MajGen O. P. SMITH

HqBn, 1stMarDiv, less Brig Det LtCol M. T. STARR
1st SigBn, less Brig Det, 2 SP
Comm Sects & Det Anglico
Carrier Plat, FMF Maj R. L. SCHREIER
1st ServBn, less Brig Det LtCol C. L. BANKS
1st OrdBn, less Brig Det Maj L. O. WILLIAMS
1st MT Bn, less Cos A and D; 1st
Amph Trk Co, FMF, less 1 Plat LtCol O. L. BEALL
1st Med Bn, less Cos A and E Comdr H. B. JOHNSON, USN
1st EngrBn, less Cos A and D LtCol J. H. PARTRIDGE
1st SP Bn, less Cos A and C LtCol H. P. CROWE
1st Tk Bn, less Cos A and D;
Tk Plat AT Co, 1st Mar
Tk Plat AT Co, 5th Mar LtCol H. T. MILNE
1st Amph Trac Bn, FMF, less Cos
A and D LtCol E. F. WANN
1st Armd Amph Bn, FMF, less
1st Plat Co A and Cos C and D LtCol F. H. COOPER

1st CSG, SC, FMF, less BrigDet;
1st Fum & Bath Plat, SC, FMF
1st Aerial Del Plat, SC, FMF Col J. S. COOK
7th MT Bn, SC, FMF Maj J. F. STEPKA
1st Mar, less Tk Plat, AT Co; Cos
C, F, and I, Reinf, 5th Mar Col L. B. PULLER
11th Mar, less 1st and 3rd Bns;
Btry C, 1st 4.5″ Rkt Bn, FMF Col J. H. BROWER

(2) Organization for landing at INCHON, KOREA (1st Prov Mar
Brig disbanded 13 September, units and detachments reverted
control parent organizations of division). Task Organization
from Annex “A”, 1st Mar Div Op Order 2-50 as derived from X
Corps Op Order No. 1.

_1st Marine Division (Reinf) FMF_ MajGen O. P. SMITH

HqBn, Reinf, 1stMarDiv, less dets
163rd Mil Int Service Det
441st CIC Det
1st Sig Bn, Reinf, less dets;
Det, 205th Sig Rep Co USA
Carrier Plat, FMF
Det, 4th Sig Bn, USA
1st Serv Bn, less Dets
1st MT Bn
1st Ord Bn, less dets
Det, MTACS-2

_Blt-3, RCT-5_ LtCol R. D. TAPLETT

3dBn, 5th Mar
Det, ANGLICO, 1st Sig Bn
Det, Co A, 1st Tk Bn
Recon Det, 11th Mar
Team 1, SP Gp A
1stPlat, Co A, 1st SP Bn
SP Comm Sqd, 1st Sig Bn
Amm Sqd, 1st Ord Bn
Det, Rat Sec, 1st Ser Bn
Det, 1st CSG, (SP Aug)
Det, Bchmstr Unit, USN

_RCT-5_ LtCol R. L. MURRAY

5th Mar, less 3dBn & Tk Plat, AT Co
Co A, 1st Engr Bn
Co C, 1st Med Bn
Det Anglico, 1st Sig Bn
ROK Marine Bn
SP GP A, less Team 1;
Co, A, 1st SP Bn, less 1 Plat
Evac Sec, 1st SP Bn
Det, Ord Sup Plat, CSG
Det, Auto Sup Plat, CSG
Det, Engr Sup Plat, CSG
Det, CS Plat, CSG
Det, Sig Sup Plat, CSG
SP Comm Sec, 1st Sig Bn
Det, 1st CSG (SP Aug)
Det, Bchmstr Unit, USN
1st Traffic Plat, MP Co
Police Sqd, MP Co
FO & Ln Sec, 1st Bn, 11th Mar
Co A, 1st Tk Bn, less det
Det, Sig Co, 1st Sig Bn

_RCT-1_ Col L. B. PULLER

1st Mar, less Tk Plat, AT Co
Co A, Reinf, 56th Amph Trac Bn, USA
Btry C, 1st 4.5″ Rkt Bn, FMF
Co C, Reinf, 1st Engr Bn, less det;
Water Sup Sec
Co D, 1st Med Bn, less det
Det ANGLICO, 1st Sig Bn
SP Gp B, less Team 3;
Co B, 1st SP Bn, less 1 Plat &
Equip Sec
Evac Sec, 1st SP Bn
Amm Plat, less 1 Sqd, 1st Ord Bn
Rat Sec, 1st Ser Bn
Fuel Sec, 1st Ser Bn
SP Comm Sec, 1st Sig Bn

Det, Bchmstr Unit, USN
Det, 1st CSG (SP Aug)
2d Traffic Plat, MP Co
Police Sqd, MP Co
FO & Ln Secs, 2d Bn, 11th Mar

_11th Mar, less 3d Bn, reinf_ Col J. H. BROWER

96th FA Bn, USA
Det, Co B, 1st Engr Bn
1st Amph Trk Co, FMF

_1st Tk Bn, less dets, reinf_ LtCol H. T. MILNE

Tk Plat, AT Co, 1st Mar
Tk Plat, AT Co, 5th Mar

_1st Engr Bn, less dets_ LtCol J. H. PARTRIDGE

_1st SP Bn, less dets_ LtCol H. P. CROWE

H&S Co, 1st SP Bn, less dets
SP Comm Sec, 1st Sig Bn
Team 3, SP Gp B
3d Plat, Co B, 1st SP Bn
Equip Sec, Co B, 1st SP Bn
SP Comm Sec, 1st Sig Bn
Det, Ord Sup Plat, CSG
Det, Auto Sup Plat, CSG
Det, Engr Sup Plat, CSG
Det, Sig Sup Plat, CSG
Det, GS Plat, CSG
Det, Depot Plat, CSG

_Rcn Co, 1st MAR Div_ Capt K. J. HOUGHTON

_1st Amph Trac Bn, FMF_ LtCol E. F. WANN

_VMO-6_ Maj V. J. GOTTSCHALK

_ROK Marine Regt_ (-) Col SHIN, KMC

_2d Engr Spec Brig reinf_ Col J. TWITTY, USA

1st CSG, SC, FMF, less dets
1st Fum & Bath Plat
1st Aerial Del Plat
Naval Beach Gp 1, less dets
7th MT Bn, SC, FMF
73d Engr (C) Bn, USA
50th Engr Port Const Co, USA
65th Ord Amm Co, USA

(3) RCT-7 Task Organization on landing at INCHON, KOREA, 21 September. Attachments reverted to parent control on arrival assembly areas.

_RCT-7_ Col H. L. LITZENBERG

7th Mar
3d Bn, 11th Mar
Co D, 1st MT Bn
Co D, 1st Tk Bn
Co D, 1st Engr Bn
Co E, 1st Med Bn
Co C, 1st SP Bn
Det, 1st Sig Bn (ANGLICO
& 2 SP Comm Sec)

(4) Intermediate temporary attachments and detachments during the period 15 September-7 October.

18 Sept--32nd RCT USA attached 1st Mar Div

19 Sep--SpOpnsCo USA attchd 1st Mar Div
32nd RCT detached 1st MarDiv reverted to 7th Inf Div

23 Sep--17th ROK Regt attchd 1st Mar Div
17th ROK Regt detached 1st Mar Div

24 Sep--3d Bn, 187th Airborne RCT USA Attchd 1st Mar Div
3d Bn, KMC Regt detached 1st Mar Div attached 3d Bn, 187th AB RCT
1st Amph Trac Bn, FMF, less 3 Cos, detached 1st Mar Div attchd 7th
Inf Div
Co A, 1st Amph Tk and Trac Bn, USA, detached 1st Mar Div attchd
7th Inf Div

25 Sept--3d Bn, 187th AB RCT detached 1st Mar Div, attchd X Corps
3d Bn, KMC Regt det 3d Bn, 187th AB RCT attchd 1st MarDiv
161st KMC Bn (redesignated 5th KMC Bn) attchd 1st Mar Div
Sp Opns Co, USA detached 1st Mar Div, attchd 3d Bn, 187th AB RCT

26 Sep--3d Bn KMC Regt detached 1st Mar Div, attchd 187th AB RCT
(TF ABLE)

29 Sep--1st Amph Trac Bn, less 3d Cos, detached 7th Inf Div attchd 1st
Mar Div 96th FA Bn, USA detached 1st Mar Div

30 Sep--50th AAA(AW)Bn attached 1st Mar Div

3 Oct--50th AAA(AW)Bn detached 1st Mar Div

(5) Completion of INCHON-SEOUL operation, 7 October, and prior to mounting out at INCHON.

_1st Marine Division Reinf, FMF_ MajGen O. P. SMITH

HqBn, 1st MarDiv
163d MISD
441st CIC
Civ Asst Team LtCol M. T. STARR

1st Sig Bn
Carrier Plat, FMF Maj R. L. SCHREIER

1st Serv Bn LtCol C. L. BANKS

1st Ord Bn Maj L. O. WILLIAMS

1st MT Bn
1st Amph Trk Co, FMF LtCol O. L. BEALL

1st Tk Bn LtCol H. T. MILNE

1st Med Bn Comdr H. B. JOHNSON, USN

1st SP Bn LtCol H. P. CROWE

1st Engr Bn LtCol J. H. PARTRIDGE

1st Mar Col L. B. PULLER

5th Mar LtCol R. L. MURRAY

7th Mar Col H. L. LITZENBERG

11th Mar
Btry C, 1st 4.5″ Rkt Bn, FMF Col J. H. BROWER

1st Amph Trac Bn, FMF
less Co D LtCol E. F. WANN

1st Armd Amph Bn, FMF
less Cos C & D LtCol F. H. COOPER

7th MT Bn, SC, FMF Maj J. F. STEPKA

1st CSG, SC, FMF less dets;
1st Fum & Bath Plat
1st Aerial Del Plat Col J. S. COOK