One hundred years ago on 3 September 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 visibility today was good. Five enemy balloons were observed up during the day and several enemy planes were also seen, but they did not attempt to cross our lines . Enemy artillery was very active during the night on our support trenches and in the vicinity of the Town of LOOS, shooting intermittently with bursts of fire. During the night there was considerable activity on both sides on the zones to our right and left, although our front remained normal.
3rd Canadian Divisional Artillery war diary records:
BRAQUEMONT - Visibility being good there was more aerial activity than usual. Enemy movement was observed. All day and during the night the enemy continually put up flares and in every way appeared very nervous. Ammunition expended: A584, AX615 and BX333. Guns in action: 77 - 18pdrs., 21 - 4.5" hows.
5th Canadian Siege Battery, Canadian Artillery, Canadian Expeditionary Force was a sub-unit of 1st Canadian Heavy Artillery Group. Their war diary records:
ANGRES - During the month we were bombarded with Gas shells on several occasions also shelled 8” and 5.9” losing a quantity of ammunition.
1st Canadian Heavy Artillery Group war diary records:
Cabaret Rouge – Batteries carried out shoots on enemy wire and front line trenches during day. Several working parties were observed and fired upon with good results.
General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
In the Field - Artillery Order, No. 73 issued.
Brig.- General E.W.B. MORRISON, C.M.G., D.S.O. inspected the 1st C.D.A.C., and found the unit in good condition of efficiency.
The 52nd Battalion, 9th Brigade, 4th Canadian Division carried out a raid at 12.40 am on CINNABAR and NUN'S ALLEY Trenches. CCHA Right and Left Groups, 2nd CDA, 4th CDA, and I Corps Artillery collaborated. Raid was successful, 6 prisoners of the 2nd Guards Reserve Division being captured. Posts were established in advance of our front line. Casualties slight.
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.