1st Battalion, Royal Irish Rifles.
7th Battalion, Royal Irish Rifles
Attached to 1/6th Battalion, Black Watch (Royal Highlanders)
6th Battalion, Royal Irish Fusiliers
29th (F) Squadron, Royal Flying Corps
52nd Battalion, Canadian Infantry
3rd Battalion, South African Infantry
Royal Army Medical Corps
490th Field Company, Royal Engineers.
3rd Battalion, Royal Irish Fusiliers, attached to the 1st Battalion
5th Battalion, Royal Irish Rifles
8th Battalion, Royal Irish Rifles
Royal Army Medical Corps
15th Field Ambulance.
28th Battalion, London Regiment (Artists' Rifles)
Served with both the 1st and 2nd Battalion, RIR
9th Battalion, Royal Irish Fusiliers
3rd Battalion, Dragoon Guards
154th Field Company, Royal Engineers
139th Heavy Artillery Battery, Royal Garrison Artillery
69th Field Ambulance Brigade
103rd Squadron, RAF
7th Battalion, Royal Inniskilling Fusiliers and 7th Squadron, The Royal Flying Corps
7th Battalion, Royal Sussex Regiment
213 Squadron, Royal Air Force
66th Field Company, Royal Engineers
9th Battalion, Royal Fusiliers
13th Battalion, Royal Irish Rifles attached to 108th Company, Machine Gun Corps
5th Battalion, Attached 2nd Battalion, Royal Irish Rifles
Royal Army Medical Corps
2nd Battalion, The Royal Munster Fusiliers
10th Battalion, attached to the 9th Bn., Royal Irish Fusiliers
7th Battalion, Royal Dublin Fusiliers
7th Battalion, Royal Dublin Fusiliers
10th Battalion, Canadian Infantry (Alberta Regiment)
5th Battalion, Royal Irish Rifles, attached to the 1st Battalion.
12th Squadron,. Royal Naval Air Service
1st Battalion, Royal Dublin Fusiliers
3rd Battalion, Connaught Rangers, attached to the 1st Battalion
7th Battalion, Canadian Infantry
10th Battalion, Royal Irish Rifles
3rd Battalion, Royal Munster Fusiliers; attached to the 3rd King's African Rifles
Royal Flying Corps
Royal Naval Air Service
1st Battalion, Royal Dublin Fusiliers
9th Battalion, Royal Irish Fusiliers
13th Battalion, Royal Irish Rifles
Hawke Battalion, Royal Naval Division
9th Battalion, Royal Irish Fusiliers
3rd Battalion Royal Dublin Fusiliers, attached to the 1st Battalion
11th Battalion, Royal Inniskilling Fusiliers
3rd Battalion, Royal Irish Fusiliers; attached to the 2nd Battalion, Royal Irish Rifles
14th Battalion, Royal Irish Rifles
2nd Battalion, Australian Infantry
3rd Regiment, South African Infantry
10th Battalion, The Royal Dublin Fusiliers
8th Battalion, Royal Inniskilling Fusiliers
2nd Battalion, Royal Irish Regiment
8th Battalion, Royal Irish Rifles
2nd Battalion, Royal Inniskilling Fusiliers
Rhodesian Government Forces
172nd United States Aero
Army Service Corps
16th (Pioneer) Battalion, Royal Irish Rifles
9th Battalion, Royal Irish Fusilier
9th Battalion Royal Dublin Fusiliers attached to the 3rd Battalion Royal Dublin Fusiliers
6th Btn, attached to 1st Battalion Royal Inniskilling Fusiliers
8th Battalion, Rifle Brigade
12th Battalion, Royal Irish Rifles
9th Battalion, Royal Welsh Fusiliers
8th Battalion, Royal Irish Rifles
15th Battalion, Royal Irish Rifles
Tank Corps
10th Battalion, King's Own Royal Lancaster Regiment
Hood Battalion, Royal Naval Naval Division
2nd Battalion, Royal Dublin Fusiliers formerly (G/11757) Queen's Own (Royal West Kent Regiment)
12th Battalion, Royal Irish Rifles
4th Battalion, Royal Inniskilling Fusiliers
77th Field Ambulance, Royal Army Medical Corps
1st Squadron, Royal Flying Corps
12th Battalion, Royal Irish Rifles
16th Battalion, Canadian Infantry
1st Battalion, Royal Irish Rifles
5th Battalion, Royal Irish Rifles, attached to the 2nd Battalion Royal Irish Rifles
45th Rattray's Sikhs
1st Battalion, The Royal Sussex Regiment
10th Battalion, Royal Irish Fusiliers
5th Battalion, Royal Irish Rifles attached to the 1st Battalion, Royal Irish Rifles
13th Battalion, attached to the 10th Battalion, West Yorkshire Regiment (Prince of Wales's Own)
35th Field Company, Royal Engineers
1st Bn. Seaforth Highlanders
Royal Army Medical Corps
2nd Battalion, Leinster Regiment
20th (Public Schools) Battalion, Royal Fusiliers
4th Battalion, Royal Irish Rifles, attached to the 2nd Battalion, Royal Irish Rifles
Royal Munster Fusiliers, attached to the 1st Garrison Battalion
4th Battalion, South African Infantry
4th Battalion, Royal Inniskilling Fusiliers, attached to 111th Company. Machine Gun Corps (Infantry)
13th Battalion, Royal Irish Rifles
59th Field Company, Royal Engineers
9th Battalion, King's Own Scottish Borderers
Royal Field Artillery, attached to the Guards Div. Trench Mortar Battery
13th Battalion, Kings Royal Rifle Corps
9th Battalion, The Queens (Royal West Surrey Regiment)
2/12 Battalion, London Regiment. (The Rangers)
2nd Battalion, Argyle & Sutherland Highlanders
5th Battalion, attached 1st Battalion, Royal Irish Rifles
13th Battalion, Royal Irish Rifles
6th Battalion, Royal Irish Fusiliers
1st Battalion, Royal Inniskilling Fusiliers
6th Battalion, Lancashire Fusiliers
Royal Army Medical Corps, attached to 10th/11th Battalion, Highland Light Infantry
1st Battalion Royal Dublin Fusiliers
"C" Battery, 173rd Brigade Royal Field Artillery and Royal Flying Corps
9th Battalion, Royal Scots
1st Battalion, Cheshire Regiment
14th Battalion, Royal Irish Rifles
10th Regiment South African Infantry
5th Battalion, attached 7th Battalion, Royal Inniskilling Fusiliers
15th Battalion, Royal Scots
22nd Squadron Royal Flying Corps
2nd Battalion, Royal Irish Regiment
HMS Snaefell
18th Squadron, Royal Flying Corps and Royal Naval Volunteer Reserve
56th Squadron, Royal Flying Corps
15th Battalion, Royal Irish Rifles
1st Btn, Royal Irish Regiment