'On This Day' from culturepics.org

Captain Amyas Leigh Radford. Unit: 1st/9th Battalion, The Kingâ€™s Liverpool Regiment, attached to 8th Battalion, Lancashire Fusiliers. Death: 12 May 1915 Gallipoli Dardanelles
Died 12 May 1915
Imperial War Museum

Captain Edgar Ralph Coles. Unit: 3rd Dragoon Guards (Prince of Wales' Own). Death: 12 May 1915 Killed in action during the second Battle of Ypres Western Front
Died 12 May 1915
Imperial War Museum

Captain Ernest George Dashwood. Unit: 1st/4th Battalion, Oxfordshire and Buckinghamshire Light Infantry. Death: 12 May 1915 Killed in action in Ploegsteert Wood Western Front
Died 12 May 1915
Imperial War Museum

Captain Gordon Holland Merriman. Unit: 95th Battery, Royal Field Artillery. Death: 12 May 1915 Western Front
Died 12 May 1915
Imperial War Museum

Captain John Theodore Cumberland Wilcox. Unit: 2nd Battalion, 39th Garwhal Rifles. Death: 12 May 1915 Killed in Action near Richebourg Western Front
Died 12 May 1915
Imperial War Museum

Captain Reginald Lawrence Baker. Unit: 3rd Battalion, Monmouthshire Regiment, Territorial Force Reserve. Death: 12 May 1915 Ypres Western Front
Died 12 May 1915
Imperial War Museum

Lieutenant John Aquila MacMahon BA MB. Unit: Royal Army Medical Corps, attached to 3rd Battalion, Somerset Light Infantry. Death: 12 May 1915 Western Front
Died 12 May 1915
Imperial War Museum

Major Clement Arthur Wilkinson. Unit: 2nd Battalion, The Kings Shropshire Light Infantry. Death: 12 May 1915 At the 2 Battle of Ypres Western Front
Died 12 May 1915
Imperial War Museum

Midshipman James Ronald Herdman Faed. Unit: Royal Navy, HMS Goliath. Death: 12 May 1915 off Cape Helles at Sea, Gallipoli, Dardanelles.
Died 12 May 1915
Imperial War Museum

Private Ernest Malkin 3218. Unit: B Company, 7th Battalion, West Yorkshire Regiment, (Kingâ€™s Own), Leeds Rifles. Death: 12 May 1915 Western Front
Died 12 May 1915
Imperial War Museum

Second Lieutenant Alastair Hunter MacFarlane. Unit: 9th (Highlanders) Battalion, The Royal Scots (Lothian Regiment). Death: 12 May 1915 Ypres Western Front
Died 12 May 1915
Imperial War Museum

Second Lieutenant Geoffrey William Van der Byl Hopley. Unit: 2nd Battalion, Grenadier Guards. Death: 12 May 1915, killed in action, Western Front.
Died 12 May 1915
Imperial War Museum

Second Lieutenant John Leslie Johnston. Unit: Oxford and Bucks Light Infantry. Death: 12 May 1915 Western Front. Dean of Magdalen College, Oxford. Son of the Rev. Canon J. O. Johnston, D.D., Chancellor of Lincoln Cathedral.
Died 12 May 1915
Imperial War Museum

Second Lieutenant Kenneth James Campbell. Unit: 9th Battalion, Argyll and Sutherland Highlanders. Death: 12 May 1915 Killed in action near Ypres Western Front
Died 12 May 1915
Imperial War Museum

Second Lieutenant Richard Gibb. Unit: 1st Battalion, Argyll and Sutherland Highlanders. Death: 12 May 1915, Ypres, Western Front. Commemorated on the Menin Gate Memorial.
Died 12 May 1915
Imperial War Museum

THE MEDICAL SERVICES ON THE HOME FRONT, 1914-1918
12 May 1915
Imperial War Museum

DESTRUCTION ON THE WESTERN FRONT, 1914-1918
12 May 1916
Imperial War Museum

Major Hugh Ferdinand Mansfield Worthington-Wilmer. Unit: 2nd Battalion, attached to 13th Battalion, Royal Scots. Death: 12 May 1916 Killed in Action near Vermelles Western Front
Died 12 May 1916
Imperial War Museum

THE BRITISH ARMY ON THE WESTERN FRONT, 1914-1918.
12 May 1916
Imperial War Museum

AERIAL PHOTOGRAPHY ON THE WESTERN FRONT
12 May 1917
Imperial War Museum

Captain Norman Gilbert Pelton. Unit: 58th Battalion, 15th Infantry Brigade, 5th Division, Australian Imperial Force. Death: 12 May 1917 Western Front
Died 12 May 1917
Imperial War Museum

Gilbey, Lady to IWM
12 May 1917
Imperial War Museum

Lieutenant James Daniel Dempsey. Unit: 58th Battalion, Central Ontario Regiment, Canadian Expeditionary Force. Death: 12 May 1917 Wounded and Missing in action at Vimy Ridge Western Front. Son of Daniel Dempsey, of Stratford, Ontario.
Died 12 May 1917
Imperial War Museum

Lieutenant John Ross Robertson. Unit: Fife and Forfar Yeomanry, attached Royal Flying Corps. Death: 12 May 1917 Arras sector Western Front
Died 12 May 1917
Imperial War Museum

Lieutenant Samuel James Topp. Unit: CCompany, 58th Battalion, Australian Imperial Force. Death: 12 May 1917 Killed in action at Bullecourt Western Front
Died 12 May 1917
Imperial War Museum

Private Burton William Hamlyn 2665. Unit: 58th Battalion, Australian Imperial Force. Death: 12 May 1917, killed in action at Bullecourt, Western Front. Commemorated on the Villers-Bretonneux Memorial.
Died 12 May 1917
Imperial War Museum

Private Charles Henry Hicks 2430. Unit: 57th Battalion, Australian Imperial Force. Death: 12 May 1917, killed in action at Bullecourt, Western Front. Commemorated on the Villers-Bretonneux Memorial.
Died 12 May 1917
Imperial War Museum

Private Edward George Russell G/42623. Unit: 11th Battalion, Middlesex Regiment. Death: 12 May 1917 Western Front
Died 12 May 1917
Imperial War Museum

Private Harold Percy Harrison 1669. Unit: 60th Battalion, attached to the 58th Battalion, Australian Imperial Force. Death: 12 May 1917, killed in action, Western Front.
Died 12 May 1917
Imperial War Museum

Private Richard John Brown G/8119. Unit: 6th Battalion, The Queen's (Royal West Surrey Regiment). Death: 12 May 1917 Western Front. Son of Mr. and Mrs. J. H. Brown, of 17, Churchill Rd., Great Yarmouth.
Died 12 May 1917
Imperial War Museum

Private William Joseph Gordon 4790. Unit: Lewis Machine Gun Section, 58th Battalion, Australian Infantry, Australian Imperial Force. Death: 12 May 1917, Bullecourt, Western Front. Commemorated on the Villers-Bretonneux.
Died 12 May 1917
Imperial War Museum

Second Lieutenant Edward James Knight. Unit: 7th Battalion, attached to 10th Battalion, Lancashire Fusiliers. Death: 12 May 1917 Western Front.
Died 12 May 1917
Imperial War Museum

Second Lieutenant Frank Mitchell. Unit: 50th Company, Machine Gun Corps. Death: 12 May 1917 Gavrelle Western Front
Died 12 May 1917
Imperial War Museum

Sergeant Norman H Alderdice G/6613. Unit: 6th Battalion, The Queen's (Royal West Surrey Regiment). Death: 12 May 1917 Western Front
Died 12 May 1917
Imperial War Museum

Blacklock, Catherine to IWM
12 May 1918
Imperial War Museum

Corporal Andrew John Moore 791. Unit: 10th Battalion, 3rd Infantry Brigade, Australian Imperial Force. Death: 12 May 1918 Western Front
Died 12 May 1918
Imperial War Museum

Elder(?), G to IWM
12 May 1918
Imperial War Museum

Gambier Parry, E to IWM
12 May 1918
Imperial War Museum

Henry, Louisa S to IWM
12 May 1918
Imperial War Museum

Langdale, Catherine to IWM
12 May 1918
Imperial War Museum

Lieutenant George Eric Klug. Unit: 108th Howitzer Battery, 8th Brigade, Australian Field Artillery. Death: 12 May 1918 Western Front.
Died 12 May 1918
Imperial War Museum