General Hunter Weston & two of his Staff outside dug-out, 1915.

General Hunter Weston & two of his Staff outside dug-out, 1915.

Gurkha soldiers resting in a trench at Gallipoli, 1915.

Gurkha soldiers resting in a trench at Gallipoli, 1915.

Indian soldiers in a trench, Gallipoli, 1915.

Indian soldiers in a trench, Gallipoli, 1915.

Eating in the trenches, March 1917.

Eating in the trenches, March 1917.

Anzac in the snow, November 1915.

Anzac in the snow, November 1915.

Gurkha Rifles in bivouacs, 1915.

Gurkha Rifles in bivouacs, 1915.

Using a trench periscope, Gallipoli, 1915.

Using a trench periscope, Gallipoli, 1915.

Barbed wire, Gallipoli, 1915.

Barbed wire, Gallipoli, 1915.

Indian soldiers in a trench, Gallipoli, 1915.

Indian soldiers in a trench, Gallipoli, 1915.

A welcome rest in a trench...', August 1915.

A welcome rest in a trench…’, August 1915.

Troops of 29th Indian Infantry Brigade, Gallipoli, 1915.

Troops of 29th Indian Infantry Brigade, Gallipoli, 1915.

A Sikh soldier in a sandbagged gun emplacement, 1915.

A Sikh soldier in a sandbagged gun emplacement, 1915.

Soldiers dug in at Chocolate Hill, Suvla Bay, Gallipoli, 1915.

Soldiers dug in at Chocolate Hill, Suvla Bay, Gallipoli, 1915.

Chocolate Hill at Suvla Bay, Gallipoli, 1915.

Chocolate Hill at Suvla Bay, Gallipoli, 1915.

British and French troops make friends, 1918.

British and French troops make friends, 1918.

Dogs that are trained to a rigid discipline, 1916 (c).

Dogs that are trained to a rigid discipline, 1916 (c).

Postcard to 'Nellie' - Front

Postcard to ‘Nellie’ – Front

Trench Diagram, 1915.

Trench Diagram, 1915.

Trench map, area around Zonnebeke Redoubt, 11 Aug 1917.

Trench map, area around Zonnebeke Redoubt, 11 Aug 1917.

Haig Map Somme SW

Haig Map Somme SW

French First Aid Post on the Somme Battlefield, 1916.

French First Aid Post on the Somme Battlefield, 1916.

Captain Reginald James Young, winning the Military Cross, 1916.

Captain Reginald James Young, winning the Military Cross, 1916.

Trench map - Captain Siegfried Sassoon.

Trench map – Captain Siegfried Sassoon.

Notebook - Captain Siegfried Sassoon, 1917 (c). 1 of 3.

Notebook – Captain Siegfried Sassoon, 1917 (c). 1 of 3.

The B.E.F. Times December 1916. 11 of 11.

The B.E.F. Times December 1916. 11 of 11.

The B.E.F. Times December 1916. 10 of 11.

The B.E.F. Times December 1916. 10 of 11.

The B.E.F. Times December 1916. 9 of 11.

The B.E.F. Times December 1916. 9 of 11.

The B.E.F. Times December 1916. 8 of 11.

The B.E.F. Times December 1916. 8 of 11.

The B.E.F. Times December 1916. 7 of 11.

The B.E.F. Times December 1916. 7 of 11.

The B.E.F. Times December 1916. 6 of 11.

The B.E.F. Times December 1916. 6 of 11.

The B.E.F. Times December 1916. 5 of 11.

The B.E.F. Times December 1916. 5 of 11.

The B.E.F. Times December 1916. 4 of 11.

The B.E.F. Times December 1916. 4 of 11.

The B.E.F. Times December 1916. 3 of 11.

The B.E.F. Times December 1916. 3 of 11.

The B.E.F. Times December 1916. 2 of 11.

The B.E.F. Times December 1916. 2 of 11.

The B.E.F. Times December 1916. 1 of 11.

The B.E.F. Times December 1916. 1 of 11.

The Wipers Times', No. 3, Vol 1, Monday 6 March 1916. 2 of 2.

The Wipers Times’, No. 3, Vol 1, Monday 6 March 1916. 2 of 2.

The Wipers Times', No. 3, Vol 1, Monday 6 March 1916. 1 of 2.

The Wipers Times’, No. 3, Vol 1, Monday 6 March 1916. 1 of 2.

Newspaper: The “Better Times”, No. 2, Vol. 1, December 1918.

Newspaper: The “Better Times”, No. 2, Vol. 1, December 1918.

The B.E.F. Times', No. 2 8 September 1917.

The B.E.F. Times’, No. 2 8 September 1917.

The 'New Church' Times, No. 2 Vol. 1, 2 May 1916. 2 of 2.

The ‘New Church’ Times, No. 2 Vol. 1, 2 May 1916. 2 of 2.

The 'New Church' Times, No. 2 Vol. 1, 2 May 1916. 1 of 2.

The ‘New Church’ Times, No. 2 Vol. 1, 2 May 1916. 1 of 2.

Mortar bombs in a reserve trench ready for use, September 1916.

Mortar bombs in a reserve trench ready for use, September 1916.

British and French troops make friends, 1918.

British and French troops make friends, 1918.

Men of 6th Battalion, Cambrin, February 1918.

Men of 6th Battalion, Cambrin, February 1918.

Dogs that are trained to a rigid discipline, 1916 (c).

Dogs that are trained to a rigid discipline, 1916 (c).

The sniper finds his mark! 1915 (c).

The sniper finds his mark! 1915 (c).

British soldiers eating in a trench, 1917 (c).

British soldiers eating in a trench, 1917 (c).

Trench map, Meaulte, 62D NE2, edition 2B. Detail.

Trench map, Meaulte, 62D NE2, edition 2B. Detail.

Trench map, Meaulte, 62D NE2, edition 2B.

Trench map, Meaulte, 62D NE2, edition 2B.

French troops don their gas masks, 1915 (c).

French troops don their gas masks, 1915 (c).

British soldiers man a line of shell craters, 1917 (c).

British soldiers man a line of shell craters, 1917 (c).

A Benet-Mercier machine gun section, Flanders, 1915.

A Benet-Mercier machine gun section, Flanders, 1915.

A soldier armed with a rifle grenade, 1917.

A soldier armed with a rifle grenade, 1917.

British and Indian machine gunners, 1917.

British and Indian machine gunners, 1917.

A trench scene, 1915 (c).

A trench scene, 1915 (c).

Soldier in trench, ‘GORDON ALLEY’ and ‘GOURLAY TRENCH.’

Soldier in trench, ‘GORDON ALLEY’ and ‘GOURLAY TRENCH.’

Trenches held by South Staffordshire Regiment, Belgium.

Trenches held by South Staffordshire Regiment, Belgium.

Reinforcements... St Julien', 1917.

Reinforcements… St Julien’, 1917.

…t hrough the maze of trenches at Passchendale [sic]', 1917(c)

…t hrough the maze of trenches at Passchendale [sic]’, 1917(c)

Through gas and smoke… Passchendaele Ridge, 1917.

Through gas and smoke… Passchendaele Ridge, 1917.

Men who fell covering the retreat at Albert...' 1918.

Men who fell covering the retreat at Albert…’ 1918.

With the Canadians in the Great Battle, 1918.

With the Canadians in the Great Battle, 1918.

Royal Engineers in a communication trench, 1916.

Royal Engineers in a communication trench, 1916.

Collecting water on the Somme, August 1916.

Collecting water on the Somme, August 1916.

Dugouts on the Somme, September 1916.

Dugouts on the Somme, September 1916.

A trench interior, Somme, July 1916.

A trench interior, Somme, July 1916.

Lewis gunner on the firing step of a trench, 1916.

Lewis gunner on the firing step of a trench, 1916.

The Battle of Ginchy, 9 September 1916.

The Battle of Ginchy, 9 September 1916.

French generals examine captured German dug outs, Somme, 1916.

French generals examine captured German dug outs, Somme, 1916.

Bringing in a wounded man of the 29th Division, 1 July 1916.

Bringing in a wounded man of the 29th Division, 1 July 1916.

Resting in a trench, 1 July 1916.

Resting in a trench, 1 July 1916.

Belgian stretcher bearers carrying a wounded comrade, nd.

Belgian stretcher bearers carrying a wounded comrade, nd.

At the French Front.

At the French Front.