One hundred years ago on 21 June 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:
Visibility good. During last night the enemy Artillery was very active and fired a large number on our roads in vicinity of PETIT-VIMY. A great deal of movement reported again today.
O.O.No. 88 issued today. The personnel of the 33rd Battery who have been at the Defensive Position of the 463rd Battery are ordered to return and take over their own position. One section relieves tonight and the relief is to be completed tomorrow night.
3rd Canadian Divisional Artillery war diary records:
Fort George – Orders were received from the 3rd. Canadian Division that the 293rd. Brigade A.F.A. was posted to the Division, and Operation Order No. 106 was issued. Instructions were also received that the 1st. Canadian Division (on our right) would relieve the right of our Division, during night 22nd 23rd. inst. Accordingly O.O. 105 was issued. Several heavy showers of rain fell during the day. Visibility fair and a considerable amount of Hostile movement was engaged with satisfactory results.
Ammunition Expended. A:834. AX 343. BX 261. BCBR 50. Guns in Action. 63. 18.pdrs. 16.4.5” Hows. 2” T.M.2
5th Canadian Siege Battery, Canadian Artillery, Canadian Expeditionary Force was a sub-unit of 1st Canadian Artillery Group. Their war diary records:
Nothing to report.
1st Canadian Heavy Artillery Group war diary records:
Cabaret Rouge – Quiet.
General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
In the Field - Weather, unsettled, cloudy.
Moves of Units :- 35th H.A.G., 166th, 260th, 141st Siege Btys. (6” Hows.) and 175th. Siege Bty (9.2”Hows.) arrived in Canadian Corps area to-day, and reported to C.C.H.A.
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.