100 Years Ago Today on 4 October 1917

​One hundred years ago on 4 October 1917
31st Battery, Canadian Field Artillery, Canadian Expeditionary Force was a sub-unit of the 9th Canadian Field Artillery Brigade in the 3rd Canadian Division. The 9th Brigade war diary records:
During this period the 31st 18 pdr. Battery and the 36th Howitzer Battery were in the line in front of MERICOURT and the Headquarters and the 33rd and 45th 18 pdr. Batteries were in rest at wagon lines near CAMBLAIN L'ABBY, with two batteries of the 10th Brigade, C.F.A., attached, also in rest.
 
31st Battery, Canadian Field Artillery was attached to 10th Canadian Field Artillery Brigade during this period. The 10th Brigade war diary records that:   
Rainy and cold. Heavy stuff on our front at 9.30 p.m. To retaliate for an hour. O.O. No. 135 received from 3rd C.D.A. postponing the LENS show and detailing relief by 2nd CDA. Our O.O. No. 133 issued, copy attached. 39th Battery today had one other rank killed and three other ranks wounded.
 
3rd Canadian Divisional Artillery war diary records:
The day was better than usual for observation and considerable new enemy work was reported.
Enemy movement was taken on several times, but the situation on the whole is quiet.
No. of guns in action – 19-18 pdrs. 6-4.5” Hows.
Ammunition expended – A.1, AX.100, BX.126
 
5th Canadian Siege Battery, Canadian Artillery, Canadian Expeditionary Force was a sub-unit of 1st Canadian Heavy Artillery Group. Their war diary records:
ANGRES -  Fired 42 Rounds on Hostile Batteries in N21 c 90.18 and T 5 a 10.85
At 5.10.P.M. Fired 15 Rounds retaliation on M(?)ericourt and at 7.45.P.M. 20 Rounds on Lons Church
 
1st Canadian Heavy Artillery Group war diary records:
Cabaret Rouge – Day very windy and rainy; batteries retaliated heartily during the day in response to enemy's ? artillery activity.  S.O.S. in ?, Maricourt and ? responded to.
 
General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
In the Field - Artillery Order No.87 issued.
Only slight artillery activity.
Brig.-General MORRISON inspected wagon lines of the 6th Bde. C.F.A.
Brigade found to be in good condition for a fighting unit.
 
15th Field Artillery Regiment RCA perpetuates the following sub units:
31st Battery, Canadian Field Artillery, Canadian Expeditionary Force,
5th Canadian Siege Battery, Canadian Artillery, Canadian Expeditionary Force,
68th Battery, Canadian Field Artillery, North Russia Expeditionary Force, was not authorized to be formed until 3 August 1918, and
85th Battery, Canadian Siberian Expeditionary Force was not authorized to be formed until 12 July 1918.