100 Years Ago Today on 7 July 1917

​One hundred years ago on 7 July 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: 
A considerable amount of Counter-Battery work and harassing fire was done during the day and night apparently in imitation of our methods . O.O.No.95 was issued today providing for a slight change of zone consequent to a redistribution of the Artillery on the Corps front. The 31st and 36th Batteries sent up a section to their new positions in the evening.

3rd Canadian Divisional Artillery war diary records:
CHATEAU DE LA HAIE – Weather was misty, interfering with observation. Aeroplanes were fairly active on both sides, but no balloons were observed. Enemy did scattered shelling on back areas during day. Our artillery normal.
Ammunition Expended. A:499. AX 887 BX 2455. Guns in Action. 132. 18.pdrs. 37. 4.5”Hows.

5th Canadian Siege Battery, Canadian Artillery, Canadian Expeditionary Force was a sub-unit of 1st Canadian Artillery Group. Their war diary records:
This afternoon we carried out a satisfactory shoot on Hostile Bty NX49 at N5c52.44 with aeroplane observation expending 113 rounds.

1st Canadian Heavy Artillery Group war diary records:
Cabaret Rouge – No.141 S.B.RGA., and 166th.SB. RGA. Entered Group pending orders for moving to another area. Counter Battery and Trench program carried out as attached.

General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
In the Field - WEATHER:-     Fine – bright sun.
Artillery Units: Remaining Echelons of following Artillery Units left Canadian Corps:- 35th H.A.G., 49th Siege Bty., 27th Siege Bty., 101st S. Bty., 73rd Siege Bty.

The 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.