21st Divisional Artillery Operation Order No 1. 22 June 1916

15 CA 10/71
Copy No 7


June 22nd 1916

1. Reference Instructions for a Preliminary Bombardment forwarded under my No 15/CA 10/23 dated 12th June 1916 and Amendments thereto under my No 15/CA 10/23/1 dated 21st June 1916, the preliminary bombardment will commence on the morning of the 24th instant and will be carried out daily, in accordance with the above quoted instructions.

J.M.R. Harrison Major.
Staff Officer to B.G.R.A., XV Corps

Copy No 1 to XV Corps.
do 2 to XV Corps H.A.
do 3 to 7th Division.
do 4 to 7th Divisional Artillery.
do 5 to 17th Division.
do 6 to 21st Division.
do 7 to 21st Divisional Artillery.
do 9 to WAR DIARY
do 10 to File
do 11to 14. Spare

Nothing new.

21st Divisional Artillery Instruction 22 June 1916

15 CA 10/66
7th Divisional Artillery.
21st Divisional Artillery.
17th Divisional Artillery. (for information).
XV Corps Heavy Artillery.
8th Anti-Aircraft Battery.

Please send in to this Office by 6 p.m. each evening, from “U” day inclusive, a short report on the telephone, giving:-
(a). General Situation.
(b). Results of Shooting.
(c). Casualties to Officers, or particularly heavy casualties in any Unit.
(d). Behaviour of ammunition.
(e). Casualties to Equipment, etc.

In addition, please telephone from time to time, as opportunity offers, any items of interest or information.

J.M.R. Harrison
Staff Officer to B.G.R.A.,
XV Corps.
22nd June 1916.

1. Return of ammunition expended during periods 8 p.m. to 12 noon and 12 noon to 8 p.m. daily to be wired as soon as possible after 12 noon & 8 p.m. daily from “U” day inclusive.
2. Casualty return for 24 hours ending 4 p.m. daily from “U” day inclusive – The cause of the casualty need not be stated but the names of officers must be given.

21st Divisional Artillery Instruction 22 June 1916

21st Divisional Artillery Instruction 22 June 1916

15/CA 10/42/1


With reference to 15/CA 10/42 dated 17th June 1916:-
1. No Gas Shells are to be used before “Z” Day by either 4.5” Howitzers or 75 mm French Guns.
2. On “Z” Day
(a) Lachrymatory Shells from 4.5” Howitzers are to be fired as laid down in the above quoted instructions.
(b) The Gas Shells from the 75 mm, are to be fired as follows:-
(If the Wind is away from our lines; )
( )
(In any Wind. ) Or any places
(MAMETZ VILLAGE ) in the Corps
(FRICOURT WOOD ) Area the same
Up to -30’ (ROUND WOOD ) distance or
(SHELTER WOOD. ) further from
(LOZENGE WOOD ) the front line.
Up to Zero (BOTTOM WOOD )
After Zero (Beyond the lines of the final Barrage.)

3. As the Infantry advance close to their final Objective, the distance beyond must be increased; this will vary in accordance with the direction of the wind.

J.M.R. Harrison Major
For Brigadier General, R.A., XV Corps
22nd June 1916

It does not seem necessary to issue this.

21st Divisional Artillery Instruction 22 June 1916

21st Divisional Artillery Instruction 22 June 1916

15/CA 10/73.



The following arrangements have been made for 18-Pdr Batteries to co-operate with the kite balloon on the day of the assault; one forward Battery in each Division will be in telephonic communication with the kite balloon and will answer any call from it after 3 hours after Zero; up to this time the batteries all have fixed tasks.

J.M.R. Harrison Major
for Brigadier General., R.A., XV Corps.
22nd June 1916

21st DIVISIONAL ARTILLERY for Information

A 97 has already been detailed.

21st Divisional Artillery Instruction 22 June 1916

21st Divisional Artillery Instruction 22 June 1916

21 Div

1. Infantry Brigades will assemble in the trenches prior to zero in accordance with attached table.

2. All movements of large formed bodies of troops will be done by night.

3. (a) Battalions of the 50th will march to VILLE under Brigade arrangements, leaving HEILLY at 9.45 p.m. on evening of W and X days.
(b). 63rd Brigade will move to VILLE under Brigade arrangements, but will not leave LA NEUVILLE till 9.30 p.m. on W and X days, and will be in VILLE before daylight on X and Y days.

4. The relief of the 62nd Inf Bde in the trenches by 50th, 63rd and 64th Bdes will be carried out under arrangements to be made between Brigadiers concerned.

5. The Northern and Western boundaries of the assembly area of the 50th Bde will be as follows:-
Eastern end of PURFLEET, F.3.a.05.80. – BUNKER (exclusive) – KING’S AVENUE and KING’S CROSS (exclusive) – SURREY ROAD (inclusive) – ROYAL AVENUE (inclusive).

6. The two battalions of 50th Bde on X/Y night, and the one battalion on Y/Z night, will follow 63rd Bde in march from VILLE to trenches, branching off at such places on the route as convenient to 50th Bde.
The above battalions of 50th Bde will receive their orders for the march to trenches direct from 63rd Bde.

7. Routes to the trenches have been selected and reconnoitered by Brigades concerned.

8. Brigades will make their own arrangements for marching to the trenches, 63rd Bde being particularly careful not to clash with 64th Bde in the vicinity E.12.c.S.W.
64th Bde will have the use of PIONEER AVENUE.

9. It is important that the movement of large bodies of Infantry towards the trenches on X and Y nights should not be observed. Brigades, therefore will not commence their march so early that heads of columns will be East of line running North and South through DERNACOURT Church before 9.30 p.m. Brigadiers will use their own discretion if they desire to send parties of Machine, Lewis and Stokes Gunners to the Trenches during the day.

10. In order to relieve the congestion of traffic along the Communication Trenches during the relief on X night, 62nd Bde may thin out the troops holding the trenches previous to the relief, if he sees fit.

11. 62nd Bde will issue any orders he sees fit as to the use of “Up” and “Down” communication trenches during the relief on X/Y night.

12. On arrival in the BECOURT VALLEY, 63rd Bde will ensure that its tail does not interfere with the head of the 50th Bde having a free entrance to ROYAL AVENUE.

13. 62nd Inf. Bde. will make very careful arrangements as regards provision of reliable guides etc to assist the 50th Bde in the relief. An Officer or good N.C.O. will be left in the front line trenches to accompany the first patrols sent out by the 50th Bde during the night X/Y (Appendix “Q”).

14. Brigades are reminded that there are several batteries in position along the Eastern edge of BECOURT WOOD, and also just South of the Cook-houses in ABERDEEN AVENUE. They should, therefore, avoid marching near the muzzles of the guns.
The Artillery are arranging to slacken their fire from these positions between the hours of 11 p.m. and 1 a.m on X/Y and Y/Z nights.
New arrangement must be made.
15. During the period while our guns are not shooting (para 14), Machine Guns and Lewis Guns will be particularly active along our front so as to prevent the enemy mending his wire.

Please acknowledge.

H.E. Franklyn Capt.
for Lieut-Colonel
General Staff,
21st Division

XV Corps 1
62 Inf. Bde. 5
63 : : 5
64 : : 5
Div. Art. 2
Div. Eng. 4
Pioneers 1
Signals 1
178 Tun Co. R.E. 1
“Q” 3
A.D.M.S. 1
A.P.M. 1
7th Div. 1
17th Div. 1
34th Div. 1
50th Bde 1
“F” Coy R.E. 1

7th Divisional Artillery Instruction 22 June 1916

7th Divisional Artillery Instruction 22 June 1916


“Scheme for Preliminary Bombardment,
Operation Order No. 11 dated 18th June 1916.”
In Operation Order No. 11 dated 18th June, the following is substituted for 1st paragraph of Table “K”:-

Concentrated bombardments will take place at the following times. For description see below.

“W” day 9.0 a.m. – 10.20 a.m. No 2 bombardment.
“X” day 4.30 a.m. – 5.50 a.m. No 3 bombardment.
“Y” day 6.0 a.m. – 7.20 a.m. No 1 bombardment.

(Description of bombardments – as already laid down in Table “K”)

Gas will be discharged on the first night that the wind is favourable.

240 m.m Trench Mortars may be used as required from “W” day onwards.

2” Trench Mortars for wire-cutting on “U” and “V” days and as required afterwards.

60-prs for wire-cutting and registration on “V” day and as required afterwards.

3” Stokes Mortars as required on “W” day and onwards.

On “V” day all heavy guns and howitzers will register all day.

Table “A” of “Scheme for Preliminary Bombardment” will be used on “X” day instead of “V” and “X” days.

On “V” day 4.5” howitzers will register where required. They will also destroy selected strong points, O.P’s etc in their zones.

As there are only three days preliminary bombardment and three concentrated bombardments, the amount of ammunition allotted to tasks of 4.5” howitzers can be increased on “W”, “X” and “Y” days, but care must still be exercised not to exceed the limit of work that can reasonably be expected from detachments.

S.A. Boddam-Whetham
Captain R.A.
Brigade Major R.A. 7th Division
Headquarters R.A.
7th Division.
22nd June 1916.

21st Divisional Artillery Instruction 22 June 1916

21st Divisional Artillery Instruction 22 June 1916

Day/Night Unit From To Remarks


Y/Z 64 Inf Bde.
2 Bns 50th Bde
2 Bns 63rd :

2 Bns 50th Bde.
2 Bns 63rd :
2 Bns 64th :
2 Bns 62nd :

1 Bn 50th Bde
63rd Bde (less 2 Bns)

1 Bn 50th Bde

63rd Bde (less 2 Bns)

64th Bde.) less 2 Bns.)

62nd Bde. VILLE






Position selected by Brigade.





To assembly positions.

or wherever desired by 50th Bde.

T.M. Batteries and M.G. Companies will move to trenches under orders to be issued by Brigadiers.

21st Divisional Artillery Instruction 22 June 1916

21st Divisional Artillery Instruction 22 June 1916

15/CA 10/72

7th Divisional Artillery
21st Divisional Artillery
17th Divisional do (for information)
XV Corps Heavy Artillery

With reference to the final bombardment and barrages on Z day, all Artillery Officers must be careful not to fire on their objective after Zero, or the various times given in the lifts.

They must remember the time of flight of their shells and arrange to stop so that the last shells will arrive at Zero, not the last gun be fired at that time. This is necessary in order that the Infantry may know exactly when to move forward.

E.W. Alexander
Brigadier General. R.A. XVth Corps
22nd June 1916

Am sending 1copy per battery.

21st Divisional Artillery Instruction 22 June 1916

21st Divisional Artillery Instruction 22 June 1916

21 Div.
XV Corps 1. “Q” 3.
62 Inf. Bde. 5. A.D.M.S. 1.
63 “ “ 5. A.P.M. 1.
64 “ “ 5. C. Comdt 1.
Div. Art. 2. D.A.D.O.S. 1.
Div. Eng. 4. 7th Div . 1.
Pioneers 1. 17th Div. 1.
Signals 1. 34th Div 1.
178 Tun. Co. 1. 50th Bde. 1.

Reference 21 Div O.O. No. 55 dated 17.6.16


The following distinctive badges will be worn:-

(1.) Wire cutters – a white band 2” wide on the right forearm.
(2.) Carriers – a red badge 2” deep on the right shoulder strap.
(3.) Bombers (who are not on the badged establishment) – a white grenade 2 ½” in length on the right sleeve, just below the shoulder.
(4.) Medium & Heavy T.M. personnel – Yellow brassard 1” wide round each upper arm.
(5.) Infantry Runners – a yellow badge 2” square on each forearm.
(6.) Signal personnel – Blue and white brassard.
(7.) Div Cavalry and Cyclist Orderlies – Red arm band with “RUNNER” in white letters.
(8.) Artillery F.O.O’s – Green brassard on right arm.

Those mentioned in (5), (6), (7) and (8), as well as all Staff Officers, will be allowed to use “Up” and “Down” trenches in either direction.

Orders will be issued to the N.C.O’s in charge of picquets, detailed to regulate traffic in communication trenches, to the above effect.

H.E. Franklyn Captain
for Lieut Colonel
General Staff
21st Division

Included in 21 D.A. Instructions No 5