100 Years Ago Today on 12 October 1917

​One hundred years ago on 12 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:
The brigade remained at rest in ESTREE CAUCHIE completing their equipment and discarding surplus equipment, owing to the impending march to the 2nd Army Area near YPRES.  On the 12 October Operation Order #110 was issued with reference to this march which was to start at 7.30 am on the 13th instant.
 
3rd Canadian Divisional Artillery war diary records:
VILLERS BRULIN – Battery wagon lines at Carscallen’s (9th) and Ralston’s (10th) Brigades vacated. Carscallen’s brigade taking up new wagon lines at ESTREE CAUCHIE and Ralston’s Brigade at GAUCHIN LEGAL.
 
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 20 Rounds on Hostile Batteries at T 25 at T 5 d 55.70.
 
1st Canadian Heavy Artillery Group war diary records:
Cabaret Rouge – V Corps ? took over from ?
 
General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
LILLERS - HQ Canadian Corps moved from CAMBLAIN LA ABBE to LILLERS. 
 
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.