MARINE GROUND UNITS A. SEIZURE OF THE RUSSELLS (21 February-20 June 1943)
3d Marine Raider Battalion (21Feb-20Mar43)
CO	Col Harry B. Liversedge (to 15 Mar43) LtCol Samuel B. Yeaton (from 15Mar)
10th Defense Battalion (24Feb-20Jun43)
CO	Col Robert E. Blake
Detachment, 11th Defense Battalion (21Feb-28Mar43)
CO	Maj Joseph L. Winecoff
B. NEW GEORGIA OPERATION (20 June16-October 1943)2
Forward Echelon, IMAC Corps Troops (25Sep-16Oct43)
CO	Maj Donald M. Schmuck
Headquarters, 1st Marine Parachute Regiment (8-16Oct43)
CO	LtCol Robert H. Williams
ExO	Maj Jackson B. Butterfield (actg)
R-3	Maj Walter S. Osipoff
1st Parachute Battalion
CO	Maj Richard Fagan
2d Parachute Battalion (1Sep-10Oct43)
CO	LtCol Victor H. Krulak
3d Parachute Battalion
CO	Maj Robert T. Vance
Headquarters, 1st Marine Raider Regiment (5Jul-28Aug43)
CO	Col Harry B. Liversedge
ExO	(None shown for the period)
R-3	LtCol Joseph P. McCaffery
1st Raider Battalion
CO	LtCol Samuel B. Griffith, II
4th Raider Battalion (21Jun-11Jul; 18Jul-28Aug43)
CO	LtCol Michael S. Currin
4th Defense Battalion (15Aug-16Oct43)
CO	Col Harold S. Fassett
9th Defense Battalion (20Jun-31Aug43)
CO	LtCol William J. Scheyer
C. TREASURY-BOUGAINVILLE OPERATION AND CONSOLIDATION OF NORTHERN SOLOMONS (28 October 1943-15 June 1944)3
I Marine Amphibious Corps (1-21Dec43)
CG	MajGen Roy S. Geiger

CofS	BGen Alfred H. Noble (to 18 Dec43) BGen Oscar R. Cauldwell (from 18Dec)
C-1	LtCol Joseph D. Burger
C-2	LtCol William F. Coleman
C-3	LtCol Edward W. Snedeker
C-4	LtCol Frederick L. Wieseman
2d 155mm Artillery Battalion (Provisional) (18Nov-21Dec43)
CO	LtCol Joe C. McHaney
Corps Transportation Company, 1st Corps Motor Transport Battalion (8Nov-25Dec43)
CO	Maj Franklin H. Hayner
1st Corps Signal Battalion (6Nov-21Dec43)
CO	LtCol Frederick A. Ramsey, Jr.
Headquarters, 1st Marine Parachute Regiment (4Dec43-12Jan44)
CO	LtCol Robert H. Williams
ExO	Maj Jackson B. Butterfield (actg)
R-3	Maj Walter S. Osipoff
1st Parachute Battalion (23Nov43-12Jan44)
CO	Maj Richard Fagan (to 11Jan44) Maj Robert C. McDonough (from 11Jan)
2d Parachute Battalion (28Oct-4Nov43)
CO	LtCol Victor H. Krulak
3d Parachute Battalion
CO	Maj Robert T. Vance (to 10Dec43) Maj Harry L. Torgerson (from 10Dec)
2d Marine Raider Regiment (Provisional) (1Nov43-12Jan44)
CO	LtCol Alan Shapley
Ex0	LtCol Joseph W. McCaffery (KIA 1Nov) Capt Oscar F. Peatross (from 1Nov)
R-3	Capt Oscar F. Peatross
2d Raider Battalion
CO	Maj Richard T. Washburn (from 1Nov)
3d Raider Battalion
CO	LtCol Fred D. Beans
3d Defense Battalion (1Nov43-21Jun44)
CO	LtCol Edward H. Forney
Branch No. 3, 4th Base Depot (1Nov43-16Jan44)
CO	Col Kenneth A. Inman
3d Marine Division (1 Nov-21 Dec43)
CG	MajGen Allen H. Turnage
ADC	BGen Oscar R. Cauldwell
CofS	Col Robert E. Blake
D-1	LtCol Chevey S. White
D-2	LtCol Howard J. Turton
D-3	LtCol James D. Snedeker (to 12Nov43) Col Walter A. Wachtler (12Nov-16Dec) LtCol Alpha L. Bowser (from 17Dec)
D-4	Col William C. Hall
Division Headquarters and Service Battalion
CO	LtCol Samuel D. Puller (to 14Nov43) (None shown for 14Nov) LtCol Hartnoll D. Withers (15-30Nov) LtCol Samuel D. Puller (1-16Dec) (None indicated after 16Dec)
Division Special and Service Troops
CO	Col Walter A. Wachtler (to 12Nov43) LtCol James D. Snedeker (12-14Nov) LtCol Hartnoll D. Withers (15Nov-9Dec) (None shown for 10Dec) LtCol James M. Smith (from 11Dec)
3d Amphibian Tractor Battalion
CO	Maj Sylvester L. Stephan (to 5Dec43; 8-9Dec; from 17Dec) Maj Ervin F. Wann (6-7Dec; 10-16Dec)
3d Medical Battalion (1Nov-25Dec43)
CO	Cdr Gordon M. Bruce (MC)

3d Motor Transport Battalion (1Nov-25Dec43)
CO	Maj Stewart W. Purdy
3d Service Battalion
CO	LtCol Ion M. Bethel
3d Special Weapons Battalion (17Nov-25Dec43)
CO	LtCol Durant S. Buchanan
3d Tank Battalion (1Nov-25Dec43)
CO	LtCol Hartnoll J. Withers (to 15Nov43; from 10Dec) (None shown for period 16Nov-9Dec)
3d Marines (1Nov-25Dec43)
CO	Col George W. McHenry (to 17Dec43) Col Walter A. Wachtler (from 17Dec)
ExO	LtCol George O. Van Orden
R-3	Maj Sidney S. McMath (to 21Dec) (None shown from 22Dec)
1st Battalion, 3d Marines
CO	Maj Leonard M. Mason (WIA 1Nov43) Maj John D. Brody (2-18Nov) Maj Charles J. Bailey, Jr. (from 19Nov)
2d Battalion, 3d Marines
CO	LtCol Hector de Zayas
3d Battalion, 3d Marines
CO	LtCol Ralph M. King
9th Marines (1Nov-28Dec43)
CO	Col Edward A. Craig
ExO	LtCol James A. Stuart
R-3	LtCol Ralph L. Houser
1st Battalion, 9th Marines
CO	LtCol Jaime Sabater (to 19Nov43) LtCol Carey A. Randall (from 19Nov)
2d Battalion, 9th Marines
CO	LtCol Robert E. Cushman, Jr.
3d Battalion, 9th Marines
CO	LtCol Walter Asmuth, Jr.
12th Marines (1Nov43-1Jan44)
CO	Col John B. Wilson
ExO	LtCol John S. Letcher
R-3	LtCol William T. Fairbourn
1st Battalion, 12th Marines
CO	LtCol Raymond F. Crist, Jr.
2d Battalion, 12th Marines (6Nov43-1Jan44)
CO	LtCol Donald M. Weller
3d Battalion, 12th Marines
CO	LtCol Jack Tabor
4th Battalion, 12th Marines
CO	LtCol Bernard H. Kirk
19th Marines (1Nov43-1Jan44)
CO	Col Robert M. Montague (to 7Dec43) LtCol Robert E. Fojt (from 7Dec)
ExO	LtCol Robert E. Fojt (to 7Dec) Maj William V. D. Jewett (from 7Dec)
R-3	Capt Minetree Folkes, Jr.
1st Battalion, 19th Marines (Engineers)
CO	Maj Ralph W. Bohne
2d Battalion, 19th Marines (Pioneers)
CO	LtCol Harold B. West (to 7Dec43) Maj Halstead Ellison (from 7Dec)
21st Marines (6Nov43-9Jan44)
CO	Col Evans O. Ames
ExO	LtCol Arthur H. Butler
R-3	Maj James W. Tinsley
1st Battalion, 21st Marines
CO	LtCol Ernest W. Fry, Jr.
2d Battalion, 21st Marines
CO	LtCol Eustace R. Smoak
3d Battalion, 21st Marines (17Nov43-9Jan44)
CO	LtCol Archie V. Gerard
D. NEW BRITAIN CAMPAIGN AND TALASEA OPERATION (26 December 1943-25 April 1944)4

Headquarters, 1st Marine Division (26Dec43-1Mar44)
CO	MajGen William H. Rupertus
ADC	BGen Lemuel C. Shepherd, Jr.
CofS	Col Amor L. Sims (to 4Feb44) Col Oliver P. Smith (4-29Feb) Col John T. Selden (from 1Mar)
D-1	Maj Elmer W. Myers
D-2	LtCol Edmund J. Buckley (to 24Feb44) Col Harold D. Harris (from 24Feb)
D-3	Col Edwin A. Pollock (to 30Jan44) LtCol William K. Enright (from 30Jan)
D-4	Col William S. Fellers
Assistant Division Commander Group (to February 1944)
ADC	BGen Lemuel C. Shepherd, Jr.
CofS	Col Herman H. Hanneken
ADC-2	Capt Gene E. Gregg
ADC-3	Maj John S. Day
ADC-4	Capt Robert T. Crawford
Division Headquarters and Service Battalion (1Jan-1Mar44)
CO	LtCol Frank R. Worthington
Division Special Troops
CO	Col Herman H. Hanneken (None shown after 20Feb44)
Provisional Air Liaison Unit5
CO	Capt James Harris 1stLt Richard M. Hunt
1st Tank Battalion
CO	LtCol Charles G. Meints
1st Medical Battalion
CO	Capt Everett B. Keck (MC) (to 28Feb44) Cdr Stanley P. Wallin (MC) (from 28Feb)
1st Marines
CO	Col William J. Whaling, Jr. (to 29Feb44) Col Lewis B. Puller (from 29Feb)
ExO	LtCol Harold D. Harris (to 24Feb44) (None shown after 24Feb)
R-3	Maj Martin F. Rockmore (to 7Jan44) Capt John N. Rentz6 (7-20Jan) Capt Arthur Larson (from 21Jan)
1st Battalion, 1st Marines
CO	LtCol Walker A. Reaves
2d Battalion, 1st Marines
CO	LtCol James M. Masters, Jr. (to 10Feb44) Maj Charles H. Brush, Jr. (from 10Feb)
3d Battalion, 1st Marines
CO	LtCol Joseph F. Hankins
5th Marines (29Dec43-1Mar44; 5Mar-25Apr44)
CO	Col John T. Selden (to 29Feb44) Col Oliver P. Smith (1Mar-9Apr) LtCol Henry W. Buse, Jr. (from 10Apr)
ExO	LtCol William K. Enright (to 6Jan44) LtCol Lewis W. Walt (6-8Jan) Maj Harry S. Connor (9-12Jan) LtCol Lewis W. Walt (13-31Jan) (None shown for 1-8Feb) LtCol Odell M. Conoley (9-20Feb) LtCol Henry W. Buse, Jr. (21Feb-9Apr) Maj Harry S. Connor (from 10Apr)
R-3	Maj Gordon D. Gayle (to 6Jan44) Maj Harry S. Connor (from 6Jan)
1st Battalion, 5th Marines
CO	LtCol William H. Barba
2d Battalion, 5th Marines
CO	LtCol Lewis W. Walt (to 6Jan44) Maj Gordon D. Gayle (from 6Jan)
3d Battalion, 5th Marines (30Dec43-1Mar44; 5Mar-25Apr44)
CO	LtCol David S. McDougal (WIA 7Jan44)

	Maj Joseph S. Skoczylas (WIA 7Jan) LtCol Lewis B. Puller (7-8Jan) LtCol Lewis W. Walt (9-12Jan) LtCol Harold O. Deakin (13Jan-10Apr) Maj Walter McIlhenny (from 11 Apr)
7th Marines
CO	Col Julian N. Frisbie (to 22Feb44) Col Herman H. Hanneken (from 22Feb)
ExO	LtCol Lewis B. Puller (to 23Feb44) (None shown after 23Feb)
R-3	Maj Victor H. Streit
1st Battalion, 7th Marines
CO	LtCol John E. Weber
2d Battalion, 7th Marines
CO	LtCol Odell M. Conoley (to 8Feb44) Maj Charles S. Nichols, Jr. (8-14Feb). LtCol John W. Scott, Jr. (from 15Feb)
3d Battalion, 7th Marines
CO	LtCol William R. Williams (to 4Jan44) LtCol Lewis B. Puller (4-5Jan) LtCol Henry W. Buse, Jr. (6Jan-20 Feb) Maj William J. Piper, Jr. (from 21 Feb)
11th Marines
CO	Col Robert H. Pepper (to 31Jan44) Col William H. Harrison (from 31Jan)
ExO	LtCol Robert B. Luckey (to 15Feb44) (None shown for 15-16Feb) LtCol Thomas B. Hughes (from 17Feb)
R-3	Maj Louis A. Ennis (to 16Feb44) (None shown for 16-21Feb) Maj Elliott Wilson (from 22Feb)
1st Battalion, 11th Marines
CO	LtCol Lewis J. Fields
2d Battalion, 11th Marines (26Dec43-1Mar44; 5Mar-25Apr44)
CO	LtCol Noah P. Wood, Jr.
3d Battalion, 11th Marines (19Feb-1 Mar44)
CO	LtCol Forest C. Thompson
4th Battalion, 11th Marines
CO	LtCol Thomas B. Hughes (to 17Feb44) LtCol Louis A. Ennis (from 17Feb)
5th Battalion, 11th Marines (30Dec43-1 Mar44)
CO	LtCol Charles M. Nees
17th Marines
CO	Col Harold E. Rosecrans (to 19Feb44) Col Francis I. Fenton (from 19Feb)
ExO	LtCol Robert G. Ballance (from 22Feb) (None shown prior to this date7 )
R-3	Maj John P. McGuinness (to 22Feb) Maj Levi A. Smith, Jr. (from 22Feb)
1st Battalion, 17th Marines (Engineers)
CO	LtCol Henry H. Crockett
2d Battalion, 17th Marines (Pioneers)
CO	LtCol Robert G. Ballance7 (to 22Feb44) Maj Austin S. Igleheart, Jr. (from 22Feb)
12th Defense Battalion
CO	Col William H. Harrison (to 31 Jan44) LtCol Merlyn D. Holmes (from 31Jan)
E. EMIRAU LANDING AND OCCUPATION (20 March 1944-12 April 1944)
I Marine Amphibious Corps Task Group A8 (20 Mar-12Apr44)
Force Commander	BGen Alfred H. Noble
CofS	Col Gale T. Cummings
F-1	Maj Ormond R. Simpson
F-2	LtCol Sidney S. Wade
F-3	LtCol George O. Van Orden
F-4	LtCol Leonard M. Mason

4th Marines, Reinforced (20Mar-12Apr44)
CO	LtCol Alan Shapley
ExO	LtCol Samuel D. Puller
R-3	Maj Orville V. Bergren
1st Battalion, 4th Marines
CO	LtCol Charles L. Banks
2d Battalion, 4th Marines
CO	Maj John S. Messer
3d Battalion, 4th Marines
CO	Maj Ira J. Irwin
4th Pack Howitzer Battalion (20Mar-12Apr44)
CO	Maj Robert H. Armstrong
14th Defense Battalion (20-25Mar44)
CO	LtCol William F. Parks
MARINE AIR UNITS
Headquarters and Detachments, 1st Marine Aircraft Wing (A-9Feb-20Jun43; 22May44-15Mar45)9 (B-21Jun43-1May44) (C-27Aug-15Dec43)
CG	MajGen Roy S. Geiger (to 20Apr43) MajGen Ralph J. Mitchell (21Apr43-31Jan44) MajGen James T. Moore (1Feb-14Jun) MajGen Ralph J. Mitchell (from 15Jun)
AWC	BGen James T. Moore (to 1Jul43) BGen Claude A. Larkin (from 3Aug)
CofS	BGen Louis E. Woods (to 27May43) BGen James T. Moore (28 May-1Sep) Col Clayton C. Jerome (1Sep43-31Jan44) Col William L. McKittrick (1Feb-16Jun) Col. Stanley E. Ridderhof (from 17Jun)
W-1	LtCol Thomas C. Ennis (to 21Oct43) Col William B. Steiner 22Oct43-31Jan44) Capt Howard H. Parker (1Feb-1Sep) LtCol Carl L. Jolly (2Sep44-11Mar45) Maj Walter N. Gibson (from 12Mar)
W-2	LtCol John C. Munn (to 26Mar43) Capt David B. Decker (27Mar-26Nov) Capt Peter Folger (26Nov43-19Jun44) Capt Frank E. Walter (20Jun43-1Oct) Capt William H. Powell (2Oct-9Dec) Capt Harlow P. Rothert (from 10Dec)
W-3	Col Christian F. Schilt (to 19Mar43) LtCol Joe A. Smoak (19 Mar-10Apr) LtCol Paul A. Moret10 (21 Apr-7Jun) Col Marion A. Dawson (8Jun43-13Jan44) Col William B. Steiner (14-31Jan) Col Alexander W. Kreisler, Jr. (1 Feb-15Aug) Col Frank W. Schwable (16 Aug-31Oct) Col Edward A. Montgomery (1 Nov44-6Mar45) Col Charles J. Schlapkohl (from 7Mar)
W-4	LtCol Albert D. Cooley (to 21 Mar43) (None shown for 21-31Mar) Col Herbert B. Becker (31Mar43-8Jun44) Col Zebulon C. Hopkins (9Jun-25Sep)

	LtCol Otto E. Bartoe (from 26Sep)
CO, HgSqn-1	Capt Herman J. Jesse (to 15Feb43) Capt Carlos Martinez (15Feb-20Aug) Maj John T. Rooney (21Aug-9Oct) LtCol Eugene B. Diboll (10 Oct-31Dec) Maj Loren P. Kesler (1Jan-4Feb44) Capt James C. White, Jr. (5Feb-19Jun) Capt Walter E. Sallee (20Jun-12Sep) Maj Walter N. Gibson (13 Sep-8Oct) Capt Robert W. Baile (from 9Oct)
Headquarters and Forward Echelon, 2d Marine Aircraft Wing (A-9Feb-20Apr; 29Jun-16Oct43)
CG	BGen Francis P. Mulcahy
CofS	Col Walter G. Farrell (to 25Aug43) Col Elmer H. Salzman (from 25Aug)
W-1	1stLt Robert G. Coddington
W-2	Col Elmer H. Salzman (to 25Aug43) LtCol Etheridge C. Best (from 25Aug)
W-3	LtCol William C. Lemly (to 25Apr43) LtCol Etheridge C. Best (25 Apr-24Aug) LtCol Eugene F. Syms (from 25Aug)
W-4	LtCol Franklin G. Cowie
CO, HgSqn-2	Maj William K. Snyder
Forward Echelon, Marine Aircraft Group 14 (A-9Feb-3Apr43; 27Oct43-15Jan45) (B-20Aug-16Oct43)
CO	Col William O. Brice (to 16Mar44) LtCol Roger T. Carleson (16Mar-25Sep) Col Zebulon C. Hopkins (from 26Sep)
ExO	LtCol Perry O. Parmelee (to 17Dec43) LtCol Joe A. Smoak (18Dec43-31Jan44) LtCol Roger T. Carleson (1Feb-15Max) Maj Floyd E. Beard, Jr. (16Mar-28Nov) (None designated after 28Nov)
GruOpsO	Maj Clyde T. Mattison (to 14Jul43) Maj Arthur R. Stacy (15Jul-26Nov) (None shown for 27Nov) Maj Floyd E. Beard, Jr. (28 Nov43-15Mar44) Maj Walter J. Carr, Jr. (16 Mar-?Jun) Maj Floyd E. Beard, Jr. (?Jun-28Nov) (None designated after 28Nov)
CO, HgSqn-14	Capt Stanley M. Adams (to 25Nov43) Capt Arnold Borden (25Nov43-5Jun44) Maj Donald S. Bush (6Jun-7Dec) Capt Robert M. Crooks (from 8Dec)
CO, SMS-14	Maj Arthur R. Stacy (to 13Jul43) Maj Kenneth H. Black (13Jul-13Dec) Capt Walter A. Johnson (14Dec43-2Oct44) Capt Droel H. Looney (from 3Oct)
Marine Aircraft Group 21 (A-13Mar-20Jun43)
CO	LtCol Raymond E. Hopper (to 17May43) LtCol Nathaniel S. Clifford (actg) (from 17May)
ExO	LtCol Nathaniel S. Clifford (to 17May) (None shown after 17May)
GruOpsO	Capt Charles W. Somers, Jr. (to 10May43) Maj Wilfred H. Stiles (10May-1Jun) (None designated 2-9Jun)

GruOpsG	Maj George F. Britt (from 10Jun)
CO, HgSqn-21	Maj Joseph T. Cain
CO, SMS-21	LtCol Robert M. Haynes (to 12 May43) Maj Douglas J. Peacher (from 12May)
Forward Echelon, Marine Aircraft Group 24 (D-15Dec43) (A-16Dec43-30Apr44)
CO	Col William L. McKittrick (to 20Feb44) LtCol Lewis H. Delano, Jr. (from 20Feb)
ExO	LtCol Roger T. Carleson (to 1Jan44) LtCol Lewis H. Delano, Jr. (1Jan-19Feb) LtCol Robert W. Clark (from 20Feb)
GruOpsO	LtCol Lewis H. Delano, Jr. (to 19Feb) Maj Max J. Volcansek, Jr. (19Feb-26Apr) (None shown after 26Apr)
CO, HgSqn-24	Capt Alan Limburg (actg) (to 26Jan44) Maj Lawrence L. Jacobs (from 26Jan)
CO, SMS-24	LtCol Robert W. Clark (to 20Feb44) Capt Watt S. Ober (from 20Feb)
Marine Aircraft Group 25 (A-9Feb-20Jun43; 27Oct43-15Mar45) (B-21Jun-16Oct43)
CO	Col Perry K. Smith (to 10Jul43) Col Wyman F. Marshall (10Jul-15Dec) Col Allen C. Koonce (16-31Dec) Col William A. Willis (1Jan-24Jul44) Col Allen C. Koonce (25Jul44-12Feb45) Col Harold C. Major (from 13Feb)
ExO	Col Wyman F. Marshall (to 14Feb43) LtCol Elmore W. Seeds (14 Feb-31 May) LtCol William K. Lanman, Jr. (1-3Jun) LtCol Federick E. Leek (4Jun-20Aug) Col William A. Willis (21Aug-27Sep) LtCol John P. Coursey (28Sep-14Nov) (None shown 15-24Nov) LtCol William H. Klenke, Jr. (25Nov44-9Feb45) Col Warren E. Sweetser, Jr. (from 10Feb)
GruOpsO	Col Wyman F. Marshall (to 5Apr43) LtCol Harry F. Van Liew (5Apr-4Jul) LtCol Elmore W. Seeds (5Jul-10Oct) LtCol Harry F. Van Liew (11 Oct43-2Aug44) LtCol Harry H. Bullock (3Aug-26Sep) LtCol Theodore W. Sanford, Jr. (27Sep44-4Mar45) LtCol William H. Klenke, Jr. (from 5Mar)
CO, HgSqn-25	Capt Dave J. Woodward, Jr. (to 9Sep43) Maj Jonathan W. Dyer (9Sep43-15Jan44) Maj Thomas M. Heard (16Jan-16Jun) Capt LeRoy M. James (17Jun-20Oct) Maj Theodore E. Beal (21Oct-9Nov) Maj Charles J. Prall (from 10Nov)
CO, SMS-25	Maj Ralph R. Yeamans (to 21 May43) Maj Jack A. Church (21May-15Jul) Maj Ralph R. Yeamans (16Jul-16Nov) Maj Jack A. Church (17Nov43-9Mar44) LtCol Millard T. Shepard (10Mar-13Nov) LtCol Albert S. Munsch (from 14Nov)

Flight Echelon, Marine Aircraft Group 61 (A-18Jul44-15Mar45)
CO	Col Perry K. Smith
ExO	LtCol Frederick B. Winfree
GruOpsO	LtCol Stewart W. Ralston (to 17Aug44) Maj Peter V. Metcalf (17Aug-8Nov) LtCol Stewart W. Ralston (from 8Nov)
CO, HqSqn-61	Maj Peter V. Metcalf (to 17Aug44) Capt Claude A. Wharton (from 17Aug)
CO, SMS-61	Maj Jack W. Julian (to 1Jan45) LtCol Roswell B. Burchard, Jr. (from 1Jan)
Marine Fighter Squadron 112 (A-9Feb-20Jun43)
CO	Maj Paul J. Fontana (to 27Mar43) Maj Robert B. Fraser (from 27Mar)
Marine Fighter Squadron 114 (C-28Mar-1 May 44)
CO	Maj Robert F. Stout
Marine Fighter Squadron 115 (C-19Apr-1May44) (A-2May-30Nov44)
CO	Maj Joseph J.Foss (to20Sep44) Maj John H. King, Jr. (from 20Sep)
Flight Echelon, Marine Fighter Squadron 121 (A-4Mar-20Jun43) (B-21Jun-22Jul43)
CO	Maj Roy L. Vroome (to 14May43) Capt Robert E. Bruce (from 14May)
Flight Echelon, Marine Fighter Squadron 123 (A-9Feb-20Jun43) (B-15Aug-18Sep43)
CO	Maj Edward W. Johnston (to 19Apr43) Maj Richard M. Baker (from 19Apr)
Flight Echelon, Marine Fighter Squadron 124 (A-12Feb-1Jun43) (B-21Jun-6Sep43)
CO	Maj William E. Gise (MIA 13May43) Capt Cecil B. Brewer (13May-25Jun) Maj William H. Pace (26Jun-13Jul) LtCol William A. Millington (from 14Jul)
Flight Echelon, Marine Scout-Bomber Squadron 131 (A-9Feb-2May43)
CO	Capt Jens C. Aggerbeck, Jr. (to 15Mar43) Capt George E. Dooley (from 15 Mar)
Flight Echelon, Marine Scout-Bomber Squardon 132 (A-8Feb-29 Mar43) (B-22Jun-1Aug43)
CO	Maj Louis B. Robertshaw (to 27May43) Maj Russell D. Rupp (from 27May)
Marine Scout-Bomber Squadron 133 (A-24Aug-11 Dec44)
CO	Maj Lee A. Christoffersen
Flight Echelon, Marine Torpedo-Bomber Squadron 134 (D-26Nov-27Dec43) (C-17Feb-1 May44)
CO	LtCol Alben C. Robertson
Flight Echelon, Marine Scout-Bomber Squadron 141 (A-9Feb-19Jun43) (B-20Jun-3Sep43)
CO	Capt Claude A. Carlson, Jr. (to 8Mar43) 1stLt Oscar J. Camp, Jr. (8 Mar-1Apr) Maj Howard F. Bowker, Jr. (2Apr-14May) Capt Middleton P. Barrow (15 May-25Aug) 1stLt John E. Lepke (from 26 Aug)

Flight Echelon, Marine Torpedo-Bomber Squadron 142 (A-9Feb-26Apr44; 19Sep-19Dec44)
CO	Maj Robert H. Richard (to 9Jun44) Capt Hoyle R. Barr (from 18Jul)
Marine Scout-Bomber Squadron 143 (A-15Feb-20Jun43)
CO	Maj John W. Sapp, Jr. (to 14May43) Capt Warren G. Mollenkamp (14May-7Jun) MG Alvie D. Godwin (actg) (8-20Jun)
Ground Echelon, VMTB-14311 (B-20Jul-29Aug43)
	Capt Timothy A. Moynihan
Forward Echelon, VMTB-143 (D-27Oct-30Nov43) (C-19Jan-3Mar44)
	Capt Timothy A. Moynihan (to 13Nov43) 1stLt William O. Cain (13-28Nov) Capt Henry W. Hise (from 29Nov)
Marine Torpedo-Bomber Squadron 144 (A-9Feb-20Jun43)
CO	Capt Roscoe W. Nelson (to 20Apr43) Maj Frank E. Hollar (from 20Apr)
Flight Echelon, VMTB-144 (B-21Jun-1Aug43) (D-27Oct-22Nov43)
	Maj Frank E. Hollar
Flight Echelon, Marine Utility Squadron 152 (A-9Feb-19Jun43; 4Aug44-15Mar45) (B-20Jun-5Aug43)
CO	Maj Elmore W. Seeds (to 13Feb43) Maj Dwight M. Guillotte (from 13Feb) LtCol Albert W. Munsch (to 14Nov44) LtCol John P. Coursey (from 14Nov)
Detachment, Flight Echelon, Marine Utility Squadron 163 (A-8Apr-19Jun43; Jun44--15Mar45) (B-20Jun-18Aug43) (C-10-15Dec43)
CO	Maj William K. Lanman, Jr. (to 1Jun43) LtCol Elmore W. Seeds (1Jun-4Jul) Maj Robert B. Bell (5Jul-4Nov) Maj Freeman W. Williams (5Nov43-22May44) Maj Theodore W. Sanford, Jr. (23 May-29Jul) LtCol Harold F. Brown (from 30Jul)
Detachment, Flight Echelon, Marine Photographic Squadron 154 (A-9Feb-20Jun43) (B-21Jun-16Oct43)
CO	LtCol Elliot E. Bard
Flight Echelon, Marine Fighter Squadron 211 (D-17Oct-22Nov43) (C-30Dec43-1Feb44) (A-2Jun-30Nov44)
CO	Maj Robert A. Harvey (to 26Jan44) Maj Thomas V. Murto, Jr. (26Jan-5May) Maj Thaddeus P. Wojcik (6 May-18Oct) Maj Stanislaus J. Witomski (from 19Oct)
Flight Echelon, Marine Fighter Squadron 212 (D-27Oct-27Nov43) (C-7Jan-17Feb; 19Feb-30Apr44) (A-7Jun-8Dec44)
CO	Maj Stewart B. O'Neil (to 31Dec43) Maj Hugh M. Elwood (1Jan-23Apr44) Maj Wilbur A. Free (24Apr-8May) Maj Boyd C. McElhany, Jr. (9 May-18Nov) Maj Quinton R. Johns (from 18Nov)

Marine Fighter Squadron 213 (A-3Apr-20Jun43)
CO	Maj Wade H. Britt, Jr. (to 13Apr43)
Flight Echelon, VMF-213 (B-21Jun-29Jul; 5Sep-16Oct43)
	Maj Gregory J. Weissenberger (13Apr-22Aug43) Maj James R. Anderson (from 22Aug)
Flight Echelon, Marine Fighter Squadron 214 (A-10Mar-14May43) (B-22Jul-2Sep43) (C-14Sep-20Oct43) (D-28Nov-15Dec43) (C-16 Dec43-6Jan 44)
CO	Maj George F. Britt (to 9Jun43) Maj Henry A. Ellis, Jr. (9Jun-11Jul) Maj William H. Pace (12Jul-7Aug) Capt John R. Burnett (8Aug-6Sep) Maj Gregory Boyington (7Sep43-3Jan44, MIA) Capt Lawrence H. Howe (from 4Jan)
Marine Fighter Squadron 215 (B-25Jul-6Sep43)
CO	Maj James L. Neefus (to 30Sep44)
Ground Echelon, VMF-215 (D-27Oct-27Nov43)
	LtCol Herbert H. Williamson
Flight Echelon, VMF-215 (A-7Jan-7May44) (C-22Apr-1May44)
	Maj Robert G. Owens, Jr. (to 28Feb44) Maj James K. Dill (from 28Feb)
Flight Echelon, Marine Fighter Squadron 216 (D-23Nov-15Dec43) (C-5Feb-28Mar44)
CO	Maj Rivers J. Morrell, Jr. (to 22Jan44) Maj Benjamin S. Hargrave, Jr. (from 22Jan)
Flight Echelon, Marine Fighter Squadron 217 (A-28Jan-17Mar44) (C-28Jan-17Mar44)
CO	Maj Max R. Read, Jr.
Flight Echelon, Marine Fighter Squadron 218 (C-3Feb-16 Mar44) (A-30Apr-6Jun; 23Jul-30Nov44)
CO	Maj Horace A. Pehl (to 28Sep44) Maj Robert T. Kingsbury (from 28Sep)
Marine Fighter Squadron 221 (A-17 Mar-10 May43) (B-27Jun-24Aug43) (D-27Oct-19Nov43)
CO	Capt Robert R. Burns (to 1Jun43) Maj Monfurd K. Peyton (1Jun-16Aug) Capt John S. Payne (17-24Aug) Maj Nathan T. Post, Jr. (25Aug-11Oct) Maj Edwin S. Roberts, Jr. (from 12Oct)
Flight Echelon, Marine Fighter Squadron 222 (B-5Sep-15Oct43) (D-19Nov-15Dec43) (C-16-23Dec43) (A-3Feb-19Mar; 8May-16Jun; 5Aug-8Dec44)
CO	Capt Max J. Volcansek, Jr. (to 5Nov43) Maj Alfred N. Gordon (5Nov43-4Apr44) Maj Roy T. Spurlock (from 5Apr)
Flight Echelon, Marine Fighter Squadron 228 (D-28Nov-15Dec43) (C-16Dec43-8Jan44)
CO	Maj Marion E. Carl
VMF-223 (A-17Feb44-11Jan45)
	Maj Robert P. Keller (to 3Jul44) Maj David Drucker (3Jul-13Oct) Maj Robert F. Flaherty (from 14Oct)

Flight Echelon, Marine Torpedo-Bomber Squadron 232 (B-23Sep-16Oct43) (D-27Oct-15Dec43) (C-20Jan-1May44) (A-2May-19Jun44)
CO	Maj Rolland F. Smith (to 26Apr44) Maj Menard Doswell III (from 26Apr)
Flight Echelon, Marine Scout-Bomber Squadron 23312 (A-13 Mar-5Apr43) (B-13Aug-21Sep43) (D-2Nov-11Dec43) (C-3Jan-10Mar44)
CO	Capt Elmer L. Gilbert, Jr. (to 1May43) Maj Claude J. Carlson, Jr. (1-25May) Maj William J. O'Neill (26 May-3Sep) Maj Royce W. Coln (from 4Sep)
Flight Echelon, Marine Scout-Bomber Squadron 234 (A-9-28Feb; 12Apr-20Sep43) (B-4Aug-7Sep43)
CO	Maj William D. Roberson (to 5Apr43) Maj Otis V. Calhoun, Jr. (5Apr-30Sep)
Detachment, Flight Echelon, VMSB-234 (D-27Oct-25Nov43)
	Maj Harold B. Penne (1-26Oct) Capt Edward J. Montague, Jr. (from 27Oct)
Flight Echelon, Marine Scout-Bomber Squadron 236 (B-4Sep-16Oct43) (D-27Nov-15Dec43) (C-16-31Dec43) (A-23Mar-6May; 8Jun-13Sep44)
CO	Capt Everett E. Munn (to 10Feb44) Maj Glenn L. Todd (10Feb-17May)13 Capt Edward C. Willard (18May-15Aug) Maj James A. Feeley, Jr. (from 16Aug)
Flight Echelon, Marline Scout-Bomber Squadron 236 (B-7Sep-16Oct43) (D-27Nov-15Dec43) (C-16Dec43-7Feb44) (A-28Apr-6Jun; 1Aug-22Nov44)
CO	Maj Floyd E. Beard, Jr. (to 10Nov43) Maj William A. Cloman, Jr. (10Nov43-12Jun44) Maj Edward R. Polgrean (13Jun-13Oct) Capt Glen H. Schluckbier (14-30Oct) Maj James A. Feeley, Jr. (from 31Oct)
Flight Echelon, Marine Scout-Bomber Squadron 241 (C-9Feb-17Mar44) (A-4May-11Jun; 31Jul-20Sep44)
CO	Maj James A. Feeley, Jr. (to 12Aug44) Maj James C. Lindsay (from 12Aug)
Marine Torpedo-Bomber Squadron 242 (C-29Feb-25Apr44)
CO	Maj William W. Dean
Flight Echelon, Marine Scout-Bomber Squadron 243 (D-20Nov-15Dec43) (A-16-27Dec43; 16Jun-23Dec44) (C-17 Mar-27Apr44)
CO	Maj Thomas J. Ahern (to 3Oct44) Maj Joseph W. Kean, Jr. (from 13Oct)
Flight Echelon, Marine Scout-Bomber Squadron 244 (B-18Oct-29Nov43) (C-10Feb-22Mar44) (A-17May-24Jun; 31Jul-13Nov44)
CO	Maj Robert J. Johnson (to 25Jan44)

	Maj Harry W. Reed (25Jan-17Apr) Capt. Richard Belyea (18Apr-1Jul) Maj Frank R. Porter, Jr. (from 2Jul)
Flight Echelon, Marine Observation Squadron 251 (A-9Feb-11May43; 18Jun-30Dec44)
CO	Maj Joseph N. Renner (to 13Mar43) Capt Claude H. Welch (13Mar-14May) Maj Carl M. Longley (4Jun31Oct) Capt Robert W. Teller (1-5Nov) Maj William C. Humberd (from 6Nov)
Detachment, Flight Echelon, Marine Utility Squadron 253 (B-20Jun-31Aug43)
CO	LtCol Henry C. Lane
Flight Echelon, Marine Photographic Squadron 254 (A-12Dec43-30Sep44)
CO	Maj Edwin P. Pennebaker
Flight Echelon, Marine Fighter Squadron 313 (A-25Sep-30Nov44)
CO	Maj Joseph H. McGlothlin, Jr.
Flight Echelon, Marine Fighter Squadron 321 (C-5Dec43-27Jan44; 17Mar-24Apr44)
CO	Maj Edmund F. Overend
Flight Echelon, Marine Scout-Bomber Squadron 341 (C-1Jan-10Feb; 6Apr-1May44) (A-2May-30Nov44)
CO	Maj George J. Waldie, Jr. (to 24Jan44) Maj James T. McDaniels (24Jan-19May) Maj Walter D. Persons (20May-14Aug) Maj Christopher F. Irwin, Jr. (from 15Aug)
Ground Echelon, VMSB-341 (C-20Mar-1May44)
	Maj James T. McDaniels
Flight Echelon, Marine Bomber Squadron 413 (C-15Mar-1May44) (A-2May44-15Mar45)
CO	LtCol Andrew B. Galatian, Jr. (to 14Aug44) LtCol Stewart W. Ralston (14Aug-7Nov) LtCol Roswell B. Burchard, Jr. (8Nov44-1Jan45) LtCol Robert B. Cox (from 2Jan)
Marine Bomber Squadron 423 (A-13May44-15Mar45)
CO	LtCol John L. Winston (to 19Jul44) LtCol Norman J. Anderson (from 19Jul)
Marine Bomber Squadron 433 (A-21Jul44-15Mar45)
CO	Maj John G. Adams
Marine Bomber Squadron 443 (A-27Aug44-15Mar45)
CO	LtCol Dwight M. Guillotte
Advance Echelon, Marine Night-Fighter Squadron 531 (B-12Sep-16Oct43)
CO	Col Frank H. Schwable
Rear Echelon, VMF(N)-531 (B-10-16Oct43) (D-27Oct-15Dec43) (C-16Dec43-1May44) (A-2May-15Jul44)
CO	Col Frank H. Schwable (to 18Feb44) LtCol John D. Harshberger (18Feb-13May) Capt James H. Wehmer (from 14May)
Marine Bomber Squadron 611 (C-15Dec43-1May44)
CO	LtCol George A. Sarles
Flight Echelon, VMB-611 (A-17Nov-23Dec44; 11Feb-9Mar45)
	LtCol George A. Sarles

Footnotes

1. Unless otherwise noted, names, positions held, organization titles, and periods of service were taken from the muster rolls of the units concerned, held in the Diary Unit, Files Section, Records Branch, Personnel Department, Headquarters Marine Corps. Units are listed only for those periods, indicated by the dates below parent unit designation, for which they are entitled to campaign participation credit. This information is derived from muster rolls and U.S. Bureau of Naval Personnel, Navy and Marine Corps Awards Manual--NAVPERS 15,790 (Rev. 1953) with changes (Washington, 1953-1958). The muster rolls have been the final authority when there is a conflict in dates of unit entitlement within the overall campaign period as cited by the Awards Manual. In the case of Marine air units, many of which participated in the campaigns as flight or advance echelons only, the unit commander who was actually in the combat area is shown where muster rolls reveal this information. In order to conserve space, only units of battalion and squadron size, or larger, and sizeable separate detachments are listed for each operation, although smaller organizations may have participated also.

2. Includes: New Georgia-Rendova-Vangunu Occupation, 20Jun-31Aug43; Vella Lavella Occupation, 15Aug-16Oct43.

3. Includes Choiseul Island Diversion, 28Oct-4Nov43; Occupation and Defense of Cape Torokina, 1Nov-15Dec43; Consolidation of Northern Solomons, 15Dec43-15Jun44.

4. Includes: Cape Gloucester landing and operations, 26Dec43-1Mar44; Talasea landing and operations, 5Mar-25Apr44.

5. This unit did not have an official T/O nor was it listed in the division's muster rolls. It existed, however. The only mention made anywhere of its commanding officers is to be found in Captain Richard M. Hunt, "General Rupertus' Improvised Air Force," Marine Corps Gazette, v. 33, no. 6 (Jun49), although the inclusive dates of command and relief are not indicated.

6. No R-3 is shown in the muster rolls for the period 7-20Jan. Capt Rentz, who was Assistant R-3 at this time, was on active duty at HQMC when Hough and Crown's New Britain Campaign was written and has been listed as the R-3 in that monograph.

7. Although Lieutenant Colonel Ballance is shown in the muster rolls as the Commanding Officer, 2/17, he served as the regimental executive officer in the period 26Dec43-22Feb44. According to Ballance, Major Levi A. Smith, Jr., served as 2/17's commander during this same period. Ballance ltr.

8. Extracted from Emirau Landing Force Journal (Emirau Area Op Files A16-1, 2, 3, and 4, HistBr, HQMC).

9. Under each unit listed there will appear a letter designation for each operation in which the unit participated, and dates of involvement. Following are the campaigns and dates of entitlement:

A.	Consolidation of the Solomons	8Feb43-15Mar45
B.	New Georgia Operation	20Jun-16Oct43
C.	Bismarck Archipelago Operation	25Jun43-1May44
D.	Treasury-Bougainville Operation	27Oct-15Dec43

10. Killed in plane crash 7Jun43.

11. VMSB designation changed as of 31May43.

12. VMSB-233 was redesignated VMTB-233 on 22May43.

13. Muster Rolls show him as CO until 17May, but departing for US 7May.