Chapter XVII: Appendix: B

Build-Up of 1st Marine Division (Reinf)

(Figures include Marine Corps and Navy, both officer and enlisted)

------------------------------+---------+----------+-------------+----------
Authorized by CMC ltr conf. |1st Prov | Main | 7th RCT | Total in
Ser. 03C20550 of 25 Jul 54 | Marine | body | (sailed | Inchon-
and CMC ltr conf. Ser. | Brigade | (sailed | from | Seoul
03A21250 of 4 Aug 50 |(sailed | San Diego|Mediterranean| area on
---------------------+--------+San Diego| 10–22 Aug| 16 Aug 50 |23 Sep 50
| |14 Jul 50| 50 | and San | [477]
Units |Strength| arrived | arrived | Diego |
| | Pusan, | Kobe | 28 Aug- |
| | Korea | Japan | 2 Sep 50 |
| |2 Aug 50)|28 Aug to | arrived |
| | |10 Sep 50)| Inchon on |
| | | | 21 Sep 50) |
| | | | [476] |
---------------------+--------+---------+----------+-------------+----------
DIVISION | 22,343 | 4,770 | 12,195 | 5,336 | 20,218
+--------+---------+----------+-------------+----------
Hq Bn | 923 | 259 | 725 | | 860
Hq Co | (656)| (182)| | |
Mp Co | (140)| (38)| | |
RcnCo | (127)| (39)| | |
1st Serv Bn | 827 | 173 | 656 | | 785
1st Sig Bn | 960 | 249 | 591 | 116 | 661
1st MT Bn | 783 | 118 | 582 | 89 | 761
1st Ord Bn | 558 | 124 | 438 | | 518
1st Med Bn | 636 | 99 | 432 | 107 | 667
1st Tank Bn | 907 | 181 | 677 | 132 | 921
1st SP Bn | 755 | 188 | 357 | 196 | 836
1st Engr Bn | 1,180 | 218 | 815 | 163 | 969
11th Marines | 3,108 | 518 | 1,845 | 697 | 3,009
1st Marines | 3,902 | | 3,942 | | 3,393
5th Marines | 3,902 | 2,643 |[478]1,135| | 3,170
7th Marines | 3,902 | | | 3,836 | 3,666
+========+=========+==========+=============+==========
FMF TROOPS | 3,969 | 554 | 3,167 | | 2,973
+--------+---------+----------+-------------+----------
1st Armd Amph Bn | 526 | | 490 | |
1st Amph Trac Bn | 944 | 256 | 720 | | [479]842
1st Amph Trk Co | 245 | 77 | 166 | | 236
Btry C, 1st 4.5″ | 90 | | 89 | | 77
Rkt Bn | | | | |
Carrier Plat FMF | 94 | | 84 | | 86
1st Comb Serv Grp | 1,434 | 109 | 1,120 | | 1,167
7th MT Bn | 431 | | 418 | | 410
1st Air Delivery Plat| 63 | | 62 | | 63
1st Fum & Bath Plat | 30 | | 18 | | 30
VMO 6 | 112 | 112 | | | 62
+========+=========+==========+=============+==========
Total reinforced | 26,312 | 5,324 | 15,362 | 5,336 | 23,191
division | | | | |
---------------------+--------+---------+----------+-------------+----------

[476] Activated 17 Aug 50. The 3d Bn 6th Marines, in the
Mediterranean, was assigned to the 7th Marines and,
upon arrival in Kobe, Japan, on 3 Sept 50, was
redesignated the 3d Bn 7th Marines. Augmentation
personnel for this Battalion arrived in Kobe, Japan,
on 14 Sept 50 on the USS _Thomas Jefferson_. The
regimental commander and his staff arrived by air at
Kobe on 6 Sept 50.

[477] Based on Division Personnel Periodic Report No. 1
covering the period 15–23 Sept 50. The following losses
and gains during the period are reflected in this
report:

_Net
_Losses_ _Gains_ Loss_

KIA 118 Replacements 28
WIA 845 Returned to duty 160
MIA 14 ----- -----
Non-battle Cas 286 188 1,075
-----
1,263

[478] Augmentation personnel for the 5th Marines (Reinf)
already in Korea. The CO, 1st Marines was charged with
the assembly and organization of the augmentation units
for the 5th Marines (Reinf). Augmentation personnel
were organized into three reinforced rifle companies.
(The battalions of the 5th Marines in Korea contained
only two rifle companies each.) The reinforced
rifle companies were embarked together on one ship.
Augmentation personnel for units of the Brigade, other
than the 5th Marines, were attached to the reinforced
rifle companies.

[479] The 1st Armored Amphibian Tractor Battalion was left
in Kobe. In addition, at Kobe, were the Division
Administrative Center and some 500 17-year olds, who,
by order of SecNav, were removed from the troop list
just before sailing for Inchon. As of 15 Sept 50 there
were the following personnel of the 1st Marine Division
(Reinf) at Kobe:

Key: _O_: Officers
_E_: Enlisted

_Marine Corps_ _Navy_ _Total_
-------------- -------- ----------
_O_ _E_ _O_ _E_ _O_ _E_
59 1,268 3 14 62 1,282