Canadian Corps
. Labour Commandment Canadian Corps
. Canadian Corps Water Patrols
. Canadian Corps Supply Column
. Canadian Corps Troop Column
. Canadian Corps Mechanical Transport Column
. Canadian Ammunition Park
. Chemical Advisor, Canadian Corps
. Canadian Army Gymnastic Staff
. Canadian Corps Infantry School
. Camp Commandant, Canadian Corps
. Canadian Corps Reinforcement Camp
. Canadian Corps Infantry School (Mentioned twice in this list.)
. Canadian Army Pay Corps
. Field Cashier
Labour Commandment Canadian Corps Typo, it should be 'Commandant.'
Labour Commandant Canadian Corps
1918/03/01-1919/03/31
Canadian Corps Water Patrols
1917/11/01-1918/05/31
Canadian Corps Supply Column
1917/02/01-1918/04/14
Canadian Corps Troop Column
1915/09/14-1918/03/31
Canadian Corps Mechanical Transport Column
1918/04/14-1919/03/31
Canadian Ammunition Park :
Canadian Corps Ammunition Park
1915/09/15-1918/04/14
Canadian Cavalry Brigade Ammunition Park
1916/01/19-1917/01/29
1st Canadian Divisional Ammunition Sub-Park
1915/02/07-1918/04/14
2nd Canadian Divisional Ammunition Sub-Park
1915/06/01-1918/04/14
3rd Canadian Divisional Ammunition Sub-Park
1916/04/01-1918/04/14
4th Canadian Divisional Ammunition Sub-Park
1916/07/24-1918/04/14
49th Ammunition Sub-Park, Royal Army Service Corps British! 
1917/10/01-1917/10/31
Chemical Advisor Canadian Corps
1917/04/01-1918/12/30
Canadian Army Gymnastic Staff
Canadian Army Gymnastic Staff, France
1918/03/18-1919/04/25
Canadian Corps Infantry School
1916/11/01-1919/01/07 (No LAC Entries Currently Exist)
Camp Commandant Canadian Corps
1917/04/01-1919/04/30
Canadian Corps Reinforcement Camp
1917/09/15-1919/04/30
Camp Use this and you find all 6 Camp references.
Canadian Army Pay Corps
Canadian Army Pay Corps, London
1918/01/01-1919/06/30
Progress Charts, Canadian Army Pay Corps Headquarters, London
1918/09-1919/03 No Entries!
Field Cashier
Field Cashier, Canadian Corps
1918/12/01-1919/05/04
Field Cashier, Canadian Corps, Troops
1915/09/26-1918/11/30
Canadian Corps
The following references for General Staff are not shown amongst the sub-groups listed above. Charming, start looking amongst 151 references...The references after which I have added 'No Entries!', are a mess. The reference 1915/09-1916/10/31 seemingly has all the separate references from 1915/09/01-1915/11/30 to 1916/10/01 hidden within its date sequence. November 1916 is not to be found amongst these entries though.
General Staff
1915/09/01-1915/11/30 (No LAC Entries Currently Exist)
1915/09-1916/10/31
1915/12/01-1915/12/31 (No LAC Entries Currently Exist)
1916/01/01-1916/02/29 (No LAC Entries Currently Exist)
1916/03/01-1916/03/31 (No LAC Entries Currently Exist)
1916/04/01-1916/05/31
1916/06/01-1916/06/30
1916/07/01-1916/09/30
1916/11/01-1916/12/30 (No LAC Entries Currently Exist)
1917/01/01-1917/03/31 (No LAC Entries Currently Exist)
1917/04/01-1917/04/30 (No LAC Entries Currently Exist)
1917/05/01-1917/05/30
1917/06/01-1917/07/31
1917/08/01-1917/09/30
1917/10/01-1917/10/31
1917/11/01-1917/12/31
1918/01/01-1918/02/28 (No LAC Entries Currently Exist)
1918/03/01-1918/04/30 (No LAC Entries Currently Exist)
1918/04/01-1918/04/30 (No LAC Entries Currently Exist)
1918/05/01-1918/05/31 (No LAC Entries Currently Exist)
1918/06/02-1918/06/30 (No LAC Entries Currently Exist)
1918/07/01-1918/08/31 (No LAC Entries Currently Exist)
1918/08/08-1918/11/11 (No LAC Entries Currently Exist)
1918/09/01-1918/09/30 (No LAC Entries Currently Exist)
1918/10/01-1918/10/31 (No LAC Entries Currently Exist)
1918/11/01-1918/12/31 (No LAC Entries Currently Exist)
1919/01/01-1919/06/30 (No LAC Entries Currently Exist)
Administrative Branches of the Staff
1915/09/13-1916/03/31 (No LAC Entries Currently Exist)
1916/04/01-1916/06/30 (No LAC Entries Currently Exist)
1916/07/01-1916/11/30 (No LAC Entries Currently Exist)
1916/12/01-1917/03/31 (No LAC Entries Currently Exist)
1917/04/01-1917/05/31 (No LAC Entries Currently Exist)
1917/06/01-1917/09/30 (No LAC Entries Currently Exist)
1917/10/01-1917/12/31 (No LAC Entries Currently Exist)
1918/01/01-1918/02/28 (No LAC Entries Currently Exist)
1918/03/01-1918/03/31 (No LAC Entries Currently Exist)
1918/04/01-1918/04/30 (No LAC Entries Currently Exist)
1918/05/01-1918/08/31
1918/06/02-1918/06/30 (No LAC Entries Currently Exist)
1918/09/01-1918/09/30
1918/10/01-1918/11/30
1918/12/18-1918/12/31
1919/01/01-1919/07/05
Postal Services Check An Error Message is received if you try this
Postal Services But if you use Postal Services', they all show up
Assistant Director, Postal Services, France
1917/04/17-1919/03/31
Deputy Assistant Director, Postal Services, Canadian Corps
1915/02/14-1916/06/30
1916/07/01-1919/05/06