100 Years Ago Today on 13 October 1917

​One hundred years ago on 13 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:
It rained hard during the night and also in the morning as the batteries pulled out and as this kept up until about 1.00 pm, nearly every man was soaking wet and arrived in the afternoon at our first stop in VENDIN - les - BETHUNE in a cold and miserable condition. Operation Order #110-2 was here issued referring to the continuation of the march on the next day, leaving at 7.30 am.
 
3rd Canadian Divisional Artillery war diary records:
Headquarters, 3rd C.D.A. and Brigades remained as above until 13th inst., when they marched in accordance with O.O. 137.
The Ammunition Sub and Divisional Pack Train were attached to the 3rd. C.D.A. for the march. The 3rd. C.D.T.M. Brigade was attached to 52nd. Infantry Battalion to proceed by rail. Headquarters 3rd. C.D.A. established at GONNEHEM night of 13/14th.
 
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 9 Rounds Retaliation on M(?)ericourt sector at T 5 b 4.0.
 
1st Canadian Heavy Artillery Group war diary records:
Cabaret Rouge – This period was very quiet.  ?  programs of harassing fire and night ? were carried out. 
 
General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
LILLERS - Resting at LILLERS.  G.O.C., R.A. and S.O., R.A. visited new front (2nd Army). 
 
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.