Formation
- 62nd Brigade
- 12th (Service) Battalion, Northumberland Fusiliers
- 13th (Service) Battalion, Northumberland Fusiliers
- 8th (Service) Battalion, The East Yorkshire Regiment (until November 1915)
- 1st Battalion, The Lincolnshire Regiment (from November 1915)
- 10th (Service) Battalion, Alexandra, Princess of Wales's Own (Yorkshire Regiment) (disbanded February 1918)
- 2nd Battalion, The Lincolnshire Regiment (from February 1918)
- 3/4th Battalion, The Queen's (Royal West Surrey Regiment) (from August 1917)
- 63rd Brigade
In July 1916 the brigade moved to the 37th Division, swapping with the 110th Brigade.
- 8th (Service) Battalion, The Lincolnshire Regiment
- 8th (Service) Battalion, Somerset Light Infantry
- 12th (Service) Battalion, The Prince of Wales's Own (West Yorkshire Regiment) (until November 1915)
- 4th Battalion, The Duke of Cambridge's Own (Middlesex Regiment) (from November 1915)
- 10th (Service) Battalion, The York and Lancaster Regiment
- 64th Brigade
- 9th (Service) Battalion, King's Own Yorkshire Light Infantry
- 10th (Service) Battalion, King's Own Yorkshire Light Infantry (disbanded February 1918)
- 14th (Service) Battalion, Durham Light Infantry (until November 1915)
- 15th (Service) Battalion, Durham Light Infantry
- 1st Battalion, The East Yorkshire Regiment (from November 1915)
- 110th Brigade
In July 1916 the brigade joined from the 37th Division, swapping with the 63rd Brigade.
- 6th (Service) Battalion, The Leicestershire Regiment
- 7th (Service) Battalion, The Leicestershire Regiment
- 8th (Service) Battalion, The Leicestershire Regiment (until June 1918)
- 9th (Service) Battalion, The Leicestershire Regiment (disbanded February 1918)
- 1st Battalion, The Duke of Edinburgh's (Wiltshire Regiment) (from June 1918)
- Pioneers
- 14th (Service) Battalion, Northumberland Fusiliers
Read more about this topic: 21st Division (United Kingdom)
Famous quotes containing the word formation:
“It is because the body is a machine that education is possible. Education is the formation of habits, a superinducing of an artificial organisation upon the natural organisation of the body.”
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