One Hundred Years Ago Today on 21 July 1917

One hundred years ago on 21 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:
Today was quiet. In the late afternoon the enemy engaged one of our balloons with a H.V. Gun, forcing the pilot to parachute..
 
3rd Canadian Divisional Artillery war diary records:
CHATEAU DE LA HAIE – Day misty and visibility poor. Both sides normal, during the morning enemy fired on one of our balloons near GARENCY, with a long range gun, probably H.V. 8 inch shrapnel. Very good bursts were obtained and the observer was compelled to descend in a parachute.
Ammunition Expended. A:1051. AX 450. BX 1100. BCBR.100   Guns in Action. 83 - 18.pdrs. 38. 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:
FIELD - Fired 130 rounds on Trench at M33d95.85 with aeroplane observation but shooting appeared erratic.
 
1st Canadian Heavy Artillery Group war diary records:
Cabaret Rouge – This period was fairly quiet. Trench and Counter Battery programmes were carried out daily as per attached reports. Our observation balloons were hit by enemy shrapnel on several occasions and occupants forced to descend by parachutes.
 
General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
In the Field - WEATHER:-     Warmer.
 
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.