Expeditionary TroopsCommanding General LtGen Holland M. Smith. Chief of Staff BrigGen Graves B. Erskine. G-1 LtCol Albert F. Metze. G-2 Col St. Julien R. Marshall. G-3 Col John C. McQueen. G-4 Col Raymond E. Knapp. G-5 Col Joseph T. Smith.
Northern Troops And Landing ForceCommanding General LtGen Holland M. Smith. Chief of Staff BrigGen Graves B. Erskine. G-1 LtCol Albert F. Metze. G-2 LtCol Thomas R. Yancey (USA). G-3 Col Robert E. Hogaboom. G-4 LtCol Joseph C. Anderson (USA).
2d Marine DivisionCommanding General MajGen Thomas E. Watson. Assistant Division Commander BrigGen Merritt A. Edson. Chief of Staff Col David M. Shoup. D-1 LtCol James T. Wilbur. D-2 LtCol Thomas J. Colley. D-3 LtCol Wallace M. Greene, Jr. D-4 Col Robert J. Straub.
2d MarinesCommanding Officer Col Walter J. Stuart. Executive Officer LtCol John H. Griebel. R-1 Capt Leonard G. Hicks. R-2 Capt John L. Schwabe. R-3 Maj Samuel D. Mandeville, Jr. R-4 Maj Harold "K" Throneson.
1st Battalion, 2d MarinesBattalion Commander LtCol Wood B. Kyle. Executive Officer Maj Wendell W. Andrews. Bn-3 Maj Charles P. Lewis, Jr.
2d Battalion, 2d MarinesBattalion Commander LtCol Richard C. Nutting. Executive Officer Maj Michael P. Ryan. Bn-3 1stLt William B. Somerville.
3d Battalion, 2d MarinesBattalion Commander LtCol Arnold F. Johnston (WIA 21 June).
Maj Harold "K" Throneson (21 June to 4 July).
LtCol Arnold F. Johnston (from 5 July).Executive Officer Maj Benjamin T. Owens. Bn-3 Capt Richard Phillippi.
6th MarinesCommanding Officer Col James P. Riseley. Executive Officer LtCol Kenneth F. McLeod. R-1 Capt Philip J. Costello. R-2 Capt Donald V. Nahrgang. R-3 Maj Loren E. Haffner. R-4 Maj Cyril C. Sheehan.
1st Battalion, 6th MarinesBattalion Commander LtCol William K. Jones. Executive Officer Maj James A. Donovan, Jr. Bn-3 Capt Charles H. Triplett.
2d Battalion, 6th MarinesBattalion Commander LtCol Raymond L. Murray (WIA 15 June).
Maj LeRoy P. Hunt, Jr. (from 15 June).Executive Officer Maj Howard J. Rice. Bn-3 Capt Joseph E. Rowland.
3d Battalion, 6th MarinesBattalion Commander LtCol John W. Easley (WIA 15 June).
Maj John E. Rentsch (15 June to 2 July).
LtCol John W. Easley (from 3 July).Executive Officer Maj John E. Rentsch. Bn-3 Capt Edward L. Singletary.
8th MarinesCommanding Officer Col Clarence R. Wallace. Executive Officer LtCol Jack P. Juhan. R-1 Capt Lloyd E. Iverson. R-2 1stLt James H. Kavanagh, Jr. R-3 Maj William H. Souder, Jr. R-4 Maj Alfred E. Holland.
1st Battalion, 8th MarinesBattalion Commander LtCol Lawrence C. Hays, Jr. Executive Officer Maj Robert J. Oddy. Bn-3 Maj Daniel V. McWethy, Jr.
2d Battalion, 8th MarinesBattalion Commander LtCol Henry P. Crowe (WIA 15 June).
Maj William C. Chamberlin (from 15 June).Executive Officer Maj William C. Chamberlin. Bn-3 Capt Arthur J. Rauchle.
3d Battalion, 8th MarinesBattalion Commander LtCol John C. Miller (WIA 15 June).
Maj Stanley E. Larsen (from 15 June).Executive Officer Maj Stanley E. Larsen. Bn-3 Capt Osborne K. LeBlanc.
1st Battalion, 29th Marines
(Attached to 2d MarDiv)Battalion Commander LtCol Guy E. Tannyhill (WIA 17 June).
LtCol Rathvon M. Tompkins (from 17 June, WIA 2 July).
LtCol. Jack P. Juhan (from 2 July, reverted to 8th Marines' executive officer 4 July).
Maj William W. McKinley (from 4 July).Executive Officer Maj William S. Vasconcellos. Bn-3 Maj William W. McKinley.
10th MarinesCommanding Officer Col Raphael Griffin. Executive Officer LtCol Ralph E. Forsyth. R-1 1stLt Russell C. White. R-2 Capt Robert W. Sullivan. R-3 LtCol Howard V. Hiett. R-4 Capt Edward R. Gilbert.
1st Battalion, 10th MarinesBattalion Commander Col Presley M. Rixey (transferred to Regimental Executive Officer on 24 June).
Maj Wendell H. Best (from 25 June).Executive Officer Maj. Wendell H. Best. Bn-3 Capt Michael J. Bo.
2d Battalion, 10th MarinesBattalion Commander LtCol George R. E. Shell (WIA 16 June).
Maj Kenneth C. Houston (from 16 June).Executive Officer Maj Kenneth C. Houston. Bn-3 Capt Richard B. Cavanaugh.
3d Battalion, 10th MarinesBattalion Commander Maj William L. Crouch (KIA 7 July).
Maj James O. Appleyard (from 8 July).Executive Officer Maj Wade H. Hitt. Bn-3 Capt Alan H. Tully.
4th Battalion, 10th MarinesBattalion Commander LtCol Kenneth A. Jorgensen. Executive Officer LtCol Harry N. Shea. Bn-3 Maj James O. Appleyard.
2d 155mm Howitzer Battalion, V Amph CorpsBattalion Commander LtCol Marvin H. Floom. Executive Officer Maj Gene N. Schraeder. Bn-3 Maj Earl J. Rowse.
18th Marines2Commanding Officer LtCol Russell Lloyd (to 6th Marines on 25 June).
LtCol Ewart S. Laue (from 26 June).
Executive Officer LtCol Ewart S. Laue. R-1 Capt Winfield S. Haltom, Jr. R-2 and R-3 Capt Murdoch J. McLeod. R-4 Capt Walter J. Hulsey.
1st Battalion, 18th MarinesBattalion Commander LtCol August L. Vogt. Executive Officer Capt Joseph G. Polifka.
2d Battalion, 18th MarinesBattalion Commander LtCol Chester J. Salazar. Executive Officer and Bn-3 Capt Jerome R. Walters.
2d Tank BattalionBattalion Commander Maj Charles W. McCoy. Executive Officer and Bn-3 Capt John C. Richards, Jr.
2d Amphibian Tractor BattalionBattalion Commander Maj Henry G. Lawrence, Jr. (transferred to NTLF staff as LVT control officer on 2 July).
Maj Fenlon A. Durand (from 2 July).Executive Officer Maj Fenlon A. Durand. Bn-3 Capt William H. Housman, Jr.
5th Amphibian Tractor BattalionBattalion Commander Capt George L. Shead. Executive Officer Capt William C. Stoll. Bn-3 not shown.
2d Motor Transport BattalionBattalion Commander Maj Milton J. Green. Executive Officer Maj Robert H. Sanders. Bn-3 Capt Harry C. Olson.
2d Service BattalionBattalion Commander Capt Robert V. Perkins. Executive Officer Lt Francis E. McElroy. Bn-3 not shown.
2d Medical BattalionBattalion Commander LtComdr Claude R. Bruner. Executive Officer and Bn-3 not shown.
4th Marine DivisionDivision Commander MajGen Harry Schmidt. Assistant Division Commander BrigGen Samuel C. Cumming. Chief of Staff Col William W. Rogers. D-1 Col Walter I. Jordan. D-2 LtCol Gooderham L. McCormick. D-3 Col Walter W. Wensinger. D-4 Col William F. Brown.
23d MarinesCommanding Officer Col Louis R. Jones. Executive Officer LtCol John R. Lanigan. R-1 Capt Charlie J. Talbert. R-2 Capt Richard W. Mirick. R-3 Maj Edward W. Wells. R-4 Capt Henry S. Campbell.
1st Battalion, 23d MarinesBattalion Commander Col Ralph Haas. Executive Officer Maj James S. Scales. Bn-3 Capt James R. Miller.
2d Battalion, 23d MarinesBattalion Commander LtCol Edward J. Dillon. Executive Officer Maj Albert H. Follmar. Bn-3 Maj Robert H. Davidson.
3d Battalion, 23d MarinesBattalion Commander LtCol John J. Cosgrove (WIA 19 June).
Maj Paul S. Treitel (from 19 June).Executive Officer Maj Paul S. Treitel. Bn-3 Maj Robert J. J. Picardi.
24th MarinesCommanding Officer Col Franklin A. Hart. Executive Officer LtCol Austin R. Brunelli. R-1 Capt Kenneth N. Hilton. R-2 Capt Arthur B. Hanson. R-3 LtCol Charles D. Roberts. R-4 Maj Clyde T. Smith.
1st Battalion, 24th MarinesBattalion Commander LtCol Maynard C. Schultz (DOW 16 June).
Maj Robert N. Fricke (16 to 18 June).
LtCol Austin R. Brunelli (18 June to 4 July).
LtCol Otto Lessing (from 4 July).Executive Officer Maj Robert N. Fricke. Bn-3 1stLt Gene G. Mundy.
2d Battalion, 24th MarinesBattalion Commander LtCol Richard Rothwell. Executive Officer Capt Claude M. Cappelmann. Bn-3 Capt Charles C. Berkeley.
3d Battalion, 24th MarinesBattalion Commander LtCol Alex A. Vandegrift, Jr. (WIA 27 June, evacuated 29 June).
LtCol Otto Lessing (29 June to 3 July).
LtCol Alex A. Vandegrift, Jr. (from 3 July).
Executive Officer and Bn-3 Capt Webb D. Sawyer.
25th MarinesCommanding Officer Col Merton J. Batchelder. Executive Officer LtCol Clarence J. O'Donnell. R-1 Capt Francis A. Norton. R-2 Capt Charles D. Gray. R-3 LtCol William F. Thyson, Jr. R-4 Maj Arthur E. Buck, Jr.
1st Battalion, 25th MarinesBattalion Commander LtCol Hollis U. Mustain. Executive Officer Maj Henry D. Strunk. Bn-3 Capt Fenton J. Mee.
2d Battalion, 25th MarinesBattalion Commander LtCol Lewis C. Hudson, Jr. Executive Officer Maj William P. Kaempfer. Bn-3 Capt Victor J. Barringer.
3d Battalion, 25th MarinesBattalion Commander LtCol Justice M. Chambers (WIA 22 June).
Maj James Taul (22 to 23 June).
LtCol Justice M. Chambers (from 23 June).Executive Officer Maj James Tani. Bn-3 Capt James G. Headley.
14th MarinesCommanding Officer Col Louis G. DeHaven. Executive Officer LtCol Randall M. Victory. R-1 1stLt Cecil D. Snyder. R-2 Capt Harrison L. Rogers. R-3 Maj Frederick J. Karch. R-4 Maj Richard J. Winsborough.
1st Battalion, 14th MarinesBattalion Commander LtCol Harry J. Zimmer. Executive Officer Maj Clifford B. Drake. Bn-3 Maj Thomas McE. Fry.
2d Battalion, 14th MarinesBattalion Commander LtCol George B. Wilson, Jr. Executive Officer Maj William McReynolds. Bn-3 Capt Jack H. Riddle.
3d Battalion, 14th MarinesBattalion Commander LtCol Robert E. MacFarlane. Executive Officer Maj Harvey A. Feehan. Bn-3 Capt Fenton H. Elliott.
4th Battalion, 14th MarinesBattalion Commander LtCol Carl A. Youngdale. Executive Officer Maj John B. Edgar, Jr. Bn-3 Maj Roland J. Spritzen.
4th 105mm Howitzer Battalion, V Amphibious CorpsBattalion Commander LtCol Douglas E. Reeve. Executive Officer Maj Marvin R. Burdett. Bn-3 Capt Joe H. Daniel.
20th MarinesCommanding Officer LtCol Nelson K. Brown. Executive Officer Capt William M. Anderson. R-1 Capt Martin M. Calcaterra. R-2 Capt Carl A. Sachs. R-3 Maj Melvin D. Henderson. R-4 Capt Samuel G. Thompson.
1st Battalion, 20th MarinesBattalion Commander Maj Richard G. Ruby. Executive Officer Maj George F. Williamson. Bn-3 Capt Martin H. Glover.
2d Battalion, 20th MarinesBattalion Commander Maj John H. Partridge. Executive Officer Capt Howard M. Dowling. Bn-3 Capt George A. Smith.
4th Tank BattalionBattalion Commander Maj Richard K. Schmidt. Executive Officer Maj Francis L. Orgain. Bn-3 Capt Leo B. Chase.
10th Amphibian Tractor BattalionBattalion Commander Maj Victor J. Croizat. Executive Officer Maj Harry T. Marshall, Jr. Bn-3 not shown on rolls.
4th Motor Transport BattalionBattalion Commander LtCol Ralph L. Schiesswohl. Executive Officer Maj Vaughan H. Huse. Bn-3 1stLt Walter W. Alford.
4th Service BattalionBattalion Commander Col Richard H. Schubert. Executive Officer not shown. Bn-3 2dLt James T. Willis.
4th Medical BattalionBattalion Commander LtComdr George W. Mast. Executive Officer LtComdr George M. Davis, Jr. Bn-3 not shown.
27th Infantry DivisionDivision Commander3 MajGen Ralph C. Smith (relieved 24 June).
MajGen Sanderford Jarman (from 24 June, reverted to
Saipan Garrison Force Commander on 28 June).
MajGen George W. Griner (from 28 June).Assistant Division Commander BrigGen Ogden J. Ross. Chief of Staff Col A. C. Stebbins. G-1 LtCol M. Oakley Bidwell. G-2 LtCol W. M. Van Antwerp. G-3 LtCol F. H. Sheldon. G-4 LtCol Charles B. Ferris.
105th InfantryCommanding Officer Col Leonard A. Bishop. S-2 Maj Malcolm M. Jameson. S-3 Maj Philip E. Smith.
1st Battalion, 105th InfantryBattalion Commander LtCol William J. O'Brien (KIA 7 July).4
2d Battalion, 105th InfantryBattalion Commander LtCol Leslie Jensen (transferred to Regimental Executive Officer).5
Maj Edward McCarthy.Executive Officer Maj Edward McCarthy.
3d Battalion, 105th InfantryBattalion Commander LtCol Edward T. Bradt.
106th InfantryCommanding Officer Col Russell G. Ayres (relieved 26 June).
Col A. C. Stebbins (from 26 June).Executive Officer LtCol Joseph J. Parley.
1st Battalion, 106th InfantryBattalion Commander LtCol Winslow Cornett. Executive Officer Maj John Nichols.
2d Battalion, 106th InfantryBattalion Commander Maj Almerin C. O'Hara.
3d Battalion, 106th InfantryBattalion Commander LtCol Harold 1. Mizony (KIA 28 June).
Maj Francis Fisher (from 28 June).Executive Officer Maj Francis Fisher.
165th InfantryCommanding Officer Col Gerard W. Kelley (WIA 28 June).
LtCol Joseph T. Hart (from 28 June).Executive Officer LtCol Joseph T. Hart. S-1 Capt Edward S. McCabe. S-2 Maj William F. McCahill. S-3 Capt Charles E. Coates, Jr. S-4 Capt Herman M. Lutz.
1st Battalion, 165th InfantryBattalion Commander Maj James H. Mahoney. Executive Officer Capt Edward J. Strong. S-3 Capt Henry A. Berger.
2d Battalion, 165th InfantryBattalion Commander LtCol John F. McDonough (WIA 25 June).
Maj Gregory Brousseau (from 25 June, WIA 27 June).
Capt James A. Dooley (temporary 27 June).
Maj Dennis D. Claire (from 27 June).Executive Officer Maj Gregory Brousseau. S-3 Capt James A. Dooley.
3d Battalion, 165th InfantryBattalion Commander Maj Dennis D. Claire (transferred to 2d Bn 27 June).
Maj Martin H. Foery (from 27 June).Executive Officer Maj Martin H. Foery. S-3 Capt Martin E. Nolan.
27th Division ArtilleryCommanding General BrigGen Redmond F. Kernan, Jr. Executive Officer Col Harold G. Browne.
104th Field Artillery BattalionCommanding Officer LtCol George P. VanNostrand.
105th Field Artillery BattalionCommanding Officer LtCol Nicholas D. LaMorte.
106th Field Artillery BattalionCommanding Officer LtCol John J. Fitzgerald.
249th Field Artillery BattalionCommanding Officer LtCol Dwight McCallum.
XXIV Corps ArtilleryCommanding General BrigGen Arthur M. Harper. Adjutant Capt Wayne B. Young. S-2 Maj Milford W. Wood. S-3 LtCol F. W. Wheless. S-4 Maj E. P. Waggoner, Jr.
Table of Contents ** Previous Chapter (Appendix III) * Next Chapter (Appendix V)
Footnotes
1. Changes in commanders only are shown. Officers listed in other staff positions are those who originally landed with the unit at Saipan. Casualties other than commanders are not shown.
2. Command and staff list of 18th Marines is from the unit's muster roles. A check of other available records and letters from officers gives the following additional information: Lieutenant Colonel Russell Lloyd was also CO 2d Marine Division Shore Party until 25 June 1944 when he was attached to the 6th Marines. Major G. L. H. Cooper commanded the division shore party from 26 to 30 June 1944 when the beaches were turned over to the Army. Lieutenant Colonel Chester J. Salazar retained administrative command of the 2d Battalion, 18th Marines, throughout the period, although his unit, with personnel from other regiments and attached units, functioned as the 2d Division Shore Party. Lieutenant Colonel Ewart S. Lane had administrative command of the 18th Marines until 25 June 1944 and tactical command from 26 June.
3. Complete staff and command list for 27th Division units not available.
4. Name of O'Brien's replacement not shown in documents consulted.
5. Date of this change not shown in documents consulted. Assumed to have been about 1 July.