The source of this information is the war diary of the General Staff at X Corps headquarters (National Archives piece number WO95/853). It relates to 25 October 1917, the day before that on which the Corps participated in the first day of the Second Battle of Passchendaele.
An excellent illustration of the depth and complexity of the formations and units under command, and of the technical and logistical “tail” that supported the fighting-edge
Order of battle
Corps headquarters
Divisions under command of the Corps:
- 5th Division
- 7th Division
- 14th (Light) Division
- 21st Division
- 23rd Division
- 39th Division
Corps Troops:
- Xth Corps Cyclist Battalion (Army Cyclist Corps)
- X Corps Signal Company (Royal Engineers Signal Service)
- 47th Motor Airline Section (Royal Engineers Signal Service)
- BB Cable Section (Royal Engineers Signal Service)
- BW Cable Section (Royal Engineers Signal Service)
- EE Cable Section (Royal Engineers Signal Service)
- LC Cable Section (Royal Engineers Signal Service)
- SX Cable Section (Royal Engineers Signal Service)
- H Wireless Section (Royal Engineers Signal Service)
- 23 Horse Drawn Pigeon Loft (Royal Engineers Signal Service)
- 31 Horse Drawn Pigeon Loft (Royal Engineers Signal Service)
- 37 Horse Drawn Pigeon Loft (Royal Engineers Signal Service)
- 40 Horse Drawn Pigeon Loft (Royal Engineers Signal Service)
- 59 Horse Drawn Pigeon Loft (Royal Engineers Signal Service)
- X Corps Ammunition Park (Army Service Corps)
- 2 Ammunition Sub-Park
- 21 Ammunition Sub-Park
- 25 Ammunition Sub-Park
- 33 Ammunition Sub-Park
- 39 Ammunition Sub-Park
- 50 Ammunition Sub-Park
- X Corps Supply Column (Army Service Corps)
- 10 Corps Troops Supply Column
- 14 Divisional Supply Column
- 17 Divisional Supply Column
- 21 Divisional Supply Column
- 39 Divisional Supply Column
- 50 Divisional Supply Column
- 55 Divisional Supply Column
- X Corps Siege Park (594 MT Company Army Service Corps attached to corps heavy artillery)
- X Corps Draft Receiving Camp
- X Corps Musketry and Reinforcement Camp
- X Corps Royal Engineers Park
- X Corps Mobile Veterinary Detachment (Army Veterinary Corps)
- X Corps School
- X Corps Signalling School
- 6th Squadron (Royal Flying Corps)
- 7th Balloon Company (Royal Flying Corps)
- 11th Balloon Company (Royal Flying Corps)
- 47th Balloon Section Royal Flying Corps)
- Number 4 Motor Machine Gun Battery (Machine Gun Corps)
Corps Heavy Artillery (all Royal Garrison Artillery except where shown as Royal Marine Artillery):
- 6th Heavy Artillery Group
- 10th Siege Battery
- 12th Siege Battery
- 47th Siege Battery
- 162nd Siege Battery
- 181st Siege Battery
- 195th Siege Battery
- 219th Siege Battery
- 337th Siege Battery
- 11th Heavy Artillery Group
- 29th Siege Battery
- 35th Siege Battery
- 92nd Siege Battery
- 393rd Siege Battery
- 31st Heavy Battery
- 113th Heavy Battery
- 124th Heavy Battery
- 132nd Heavy Battery
- 151st Heavy Battery
- 1/1st Warwickshire Heavy Battery
- 24th Heavy Artillery Group
- 48th Siege Battery
- 121st Siege Battery
- 139th Siege Battery
- 172nd Siege Battery
- 190th Siege Battery
- 229th Siege Battery
- 247th Siege Battery
- 40th Heavy Artillery Group
- 51st Siege Battery
- 77th Siege Battery
- 160th Siege Battery
- 228th Siege Battery
- 295th Siege Battery
- 43rd Heavy Artillery Group
- 24th Siege Battery
- 73rd Siege Battery
- 118th Siege Battery
- 146th Heavy Battery
- 308th Siege Battery
- 53rd Heavy Artillery Group
- 54th Siege Battery
- 117th Siege Battery
- 200th Siege Battery
- 252nd Siege Battery
- 8th Royal Marine Artillery
- 60th Heavy Artillery Group
- 34th Siege Battery
- 65th Siege Battery
- 83rd Siege Battery
- 104th Siege Battery
- 66th Heavy Artillery Group
- 23rd Siege Battery
- 74th Siege Battery
- 143rd Siege Battery
- 233rd Siege Battery
- 275th Siege Battery
- 294th Siege Battery
- 84th Heavy Artillery Group
- 137th Siege Battery
- 241st Siege Battery
- 278th Siege Battery
- 284th Siege Battery
- 336th Siege Battery
- 1/1st Welsh Heavy Battery
- 98th Heavy Artillery Group
- 22nd Siege Battery
- 25th Siege Battery
- 36th Siege Battery
- 80th Siege Battery
- 280th Siege Battery
- 326th Siege Battery
31st, 35th and 54th Heavy Artillery Groups are also listed as being under X Corps command but no batteries are listed under them at this point.
Troops administered by X Corps:
- 9 Area Signal Detachment
- 10 Area Signal Detachment
- 41 Mobile Pigeon Loft
- 60 Mobile Pigeon Loft
- Reningelst Fixed Pigeon Loft
- Westoutre Fixed Pigeon Loft
- 6th Siege Company (Royal Marine Royal Engineers)
- 146th Army Troops Company (Royal Engineers)
- 567th Army Troops Company (Royal Engineers)
- 11th Motor Ambulance Convoy
- 81st Sanitary Section (Royal Army Medical Corps)
- 82nd Sanitary Section (Royal Army Medical Corps)
- X Corps Salvage Company
- 30th Labour Group Headquarters (Labour Corps)
- 35th Labour Group Headquarters (Labour Corps)
- 6th Labour Company (Labour Corps)
- 45th Labour Company (Labour Corps)
- 93rd Labour Company (Labour Corps)
- 94th Labour Company (Labour Corps)
- Half of 111th Labour Company (Labour Corps)
- 126th Labour Company (Labour Corps)
- 134th Labour Company (Labour Corps)
- 136th Labour Company (Labour Corps)
- 159th Labour Company (Labour Corps)
- 193rd Labour Company (Labour Corps)
- 706th Labour Company (Labour Corps)
- 39th Chinese Labour Company (Chinese Labour Corps)
- 75th Chinese Labour Company (Chinese Labour Corps)
- 8th Battalion British West Indies Regiment
- 3rd Middlesex Infantry Labour Company
- 270th Employment Company (Labour Corps)
- 739th Area Employment Company (Labour Corps)
- 749th Employment Company (Labour Corps)
- Under X Corps Inspector of Musketry (all Army Ordnance Corps)
- 5 Light Ordnance Mobile Workshop
- 54 Light Ordnance Mobile Workshop
- 3 Medium Ordnance Mobile Workshop
- 7 Medium Ordnance Mobile Workshop
- 18 Medium Ordnance Mobile Workshop
- 19 Medium Ordnance Mobile Workshop
- 14th Light Railway Operating Company (Royal Engineers)
- 33rd Light Railway Operating Company (Royal Engineers)
- 10th Railway Construction Troops (Royal Engineers)
- 120th Railway Construction Company (Royal Engineers)
- 319th Road Construction Company (Royal Engineers)
- 330th Road Construction Company (Royal Engineers)
- 335th Road Construction Company (Royal Engineers)
- 2nd Telephone Construction Company (Royal Engineers)
- 175th Tunnelling Company (Royal Engineers)
- 1st Canadian Tunnelling Company (Canadian Royal Engineers)
- No 2 Section, 1st Water Tank Company (Royal Engineers)
- No 1 Gun Carrying Company (2nd Brigade, Tank Corps)
- 4 Section Auxiliary Petrol Company (Army Service Corps)
- Detail of 66th Auxiliary Petrol Company (Army Service Corps)
- HQ and two Sections 6th Reserve Park (Army Service Corps)
- Detail of 15th Reserve Park (Army Service Corps)
- Detail of 1st Canadian Reserve Park (Canadian Army Service Corps)