Definitions of structure and composition
Cavalry
The Indian Cavalry Pioneer Battalion
Artillery
The Battery and Ammunition Column of the Royal Horse Artillery
The Divisional Ammunition Column
The Heavy Battery of the Royal Garrison Artillery
The Siege Battery of the Royal Garrison Artillery
The 13-pounder Anti-Aircraft Battery of the Royal Garrison Artillery
Infantry
The Divisional Cyclist Company
The Light Trench Mortar Battery
The Company of the Machine Gun Corps (Infantry)
The Reserve Battalion of infantry
The Young Soldier Battalion of the Training Reserve
The Graduated Battalion of the Training Reserve
The Junior or Senior Battalion of the Training Reserve
Royal Engineers
The Royal Engineers’ Field Company
The Royal Engineers’ Army Tramways Company
The Royal Engineers Train Crew Company
The Corps Signal Company of the Royal Engineers Signal Service
The Motor Air-Line Section of the Royal Engineers Signal Service
The Bridging Train or Pontoon Park of the Royal Engineers/Army Service Corps
Transport
The Army Service Corps’ Divisional Train (Horse Transport)
The Army Service Corps Divisional Supply Column (Mechanical Transport)
The Ammunition Sub Park of the Army Service Corps (Mechanical Transport)
The Siege Battery Ammunition Column of the Army Service Corps (Mechanical Transport)
The Depot Unit of Supply of the Army Service Corps
Medical
The Royal Army Medical Corps’ Field Ambulance
The Royal Army Medical Corps Hospital Ship
The Army Veterinary Corps’ Mobile Veterinary Section
Labour and home service
The Labour Company of the Labour Corps
The Divisional, Area or Home Service Employment Company of the Labour Corps
The Depot Labour Company of the Labour Corps
The Battalion of the Royal Defence Corps
Home establishment of the Corps of Military Police
My details for infantry battalions, field artillery and cavalry regiments were developed from 1980s-90s work originally produced by Ron Clifton as part of his work as the Historical Information Officer of the Western Front Association. My thanks to him for that. They have been since been developed by reference to primary sources.
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