100 Years Ago Today on 17 October 1917

​One hundred years ago on 17 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 pulled out at 11 am, while passing POPERINGHE we met Colonel Carscallen the C.O. and Major Massie returning from leave in PARIS.  We reached our new wagon lines about 3.00 pm and found there was no cover for either horses or men so tents had to be erected for the men.
 
3rd Canadian Divisional Artillery war diary records:
In accordance with orders from Second Anzac Corps, the 3rd. C.D.A. marched to Wagon lines allotted in H.10.o and H.9.d, sheet 28 BELGIUM and FRANCE, and on arrival the 3rd. C.D.A. came under orders of the 3rd Australian Division.
 
5th Canadian Siege Battery, Canadian Artillery, Canadian Expeditionary Force was a sub-unit of 1st Canadian Heavy Artillery Group. Their war diary records:
We received orders to be prepared to move North leaving our guns and equipment.
 
1st Canadian Heavy Artillery Group war diary records:
? proceeded to ? at ? and took over from ? with HQ ???
 
General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
G.O.C., R.A. Canadian Corps took over command from G.O.C., R.A. 2nd ANZACS Corps at 10:00.  HQ Canadian Corps completed relief with HQ 2nd ANZAC'S by 10:00. 
 
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.