2563 1H RCACC Petrolia initially started out as a satellite Troop of 102 1H RCACC Sarnia in Sept 1986, parading weekly in the Dunlop Transport Building on Kentail Street in Petrolia. The Dunlop building was space being donated free for use by the cadets by Jim Dunlop.
This satellite Troop was enabled due to a sizable contingency of 102 cadets that lived in the Petrolia area. These cadets had been driving into Sarnia weekly and training there for some time. A solution to simplify their situation to avoid missing training over winter months due to poor weather was first proposed by Petrolia OPP officer Fred Keates, who had two sons in the 102 Corps at the time.
Helping the situation along a great deal, a few Parents and their colleagues that had previously made the decision to get more involved and enrol as officers or act as civilian instructors at 102 Sarnia, eventually overseeing training in Petrolia.
These active participants consisted of Petrolia Town Police Officer Tom Wiggins SR (an OCdt at the Time) and Petrolia Town Police Officer Hugh Clouse and Harvey & Margaret Wilson. All acting as the initial primary driving force to raise and maintain a viable Army Cadet Troop in Petrolia. They also eventually recruited the aid of follow Petrolia Town Police Officer Charlie Conrod to come on as a Civilian Instructor as well. Their efforts at this time by doing this were vital to the inevitable future activation of 2563 as its own independent Corps.
By the "Annual Inspection" on June 13, 1987, 102 Commanding Officer at the time was Major Karl Pfisterer (a Captain at the time) and the cadet RSM was CWO Steve Filbeck. Due to some very effective recruiting actioned by previous cadet RSM Paul Loewenberg, the Petrolia Troop was elevated to full Squadron status and known as "B Squadron" cadet SSM WO Mike Clouse. Sarnia was known as "A Squadron" cadet SSM WO Nick Thiel.
From Sept of 1987 to Sept of 1988, along with this Petrolia based staff, B Squadron was renamed C Squadron, eventually commanded by Capt Carl Russell (a Lieutenant at the time). With both the 102 Cadet Captain Steve Filbeck (Promoted Sept 30, 1987, SOS Feb 24, 1988) and Cadet RSM CWO Nick Thiel (Promoted Sept 30, 1987), trading off on a week about regime, one week in Petrolia and then one week in Sarnia.
This combined effort between Officers and 102 senior cadets ensured the Petrolia Squadron a high level of turn-out and training.
Other key senior cadets on the ground working in Petrolia at the time were Mike Clouse, Paul Ainsworth, Kelly Wilson, Owen Oriet and Gerry Oriet. These cadets laid the foundation for the future cadet leadership of 2563.
Due to a massive recruiting effort actioned in both Petrolia and Sarnia in September 1987, 102 was quickly doubled in size within 21 days. This quickly led to the CO Capt Pfisterer to be promoted to the rank of Major and the re instalment of cadet officer ranks as well. Highest cadet enrollment for the 1987-1988 training year between both the Sarnia and Petrolia Squadrons was 137 cadets on strength.
A final "Annual Inspection" was held at the Sarnia Armouries on Saturday June 11, 1988 with both Squadrons together. Acting 102 Corps CO at the time was Capt Gary Fisher, Petrolia based cadet Paul Ainsworth was the cadet Capt (promoted June 8. 1988) and Sarnia based cadet CWO Nick Thiel was the Cadet RSM.
Parade state from that final Annual Inspection shows 76 cadets from Sarnia, 38 cadets from Petrolia on parade, 7 total excused and 1 absent. This was the last time Sarnia and Petrolia cadets would parade together as a single unit.
In Sept 1988, the Petrolia Squadron started their training year operating as an independent unit away from a Sarnia, with a very firm plan to become their own Corps. Officially becoming their own Corps November 25, 1988. The old Sarnia Central Collegiate Army Cadet Corps unit number "2563" which was disbanded in 1972 was then reactivated and assigned to Petrolia.
Commanding Officer's position was initially offered to Petrolia Squadron OC Capt Carl Russell, but Capt Russell declined the position, opting to parade in Sarnia and stay with 102. 102 Officer Capt Rick Patrick accepted the position and became 2563's first commanding Officer.
Petrolia based 102 cadet MWO Mike Clouse was promoted to CWO and became the first 2563 cadet RSM. This was due to Paul Ainsworth aging out after the previous summer and 102 RSM CWO Nick Thiel staying on in Sarnia.