Jerry Gregor attended school in Richmond, VA. From 1939 to 1941 he attended California Flyers School of Aeronautics in Los Angeles, CA where he received a master mechanics certificate. In 1941 he received certification from the Federal Aviation Agency as an aircraft and engine mechanic and aircraft engine ground instructor, certificate #163117.

From January to May 1941 he worked for British Overseas Airways in Baltimore, MD under the "Lend Lease Program" as a mechanic on engine buildup and airframe maintenance on Boeing and Martin flying boats (seaplanes). He was assigned to perform maintenance as required on Winston Churchill's aircraft when in Washington, D. C.
From May 1941 to February 1943 he worked for Aero Corporation, Fayetteville, N. C., as maintenance superintendent and was in charge of all aircraft maintenance activities. Additionally he taught ground school aircraft maintenance courses for U.S. Government under the Civilian Pilot Training (C.P.T) program. From February to August he was an instructor at the Lively School of Aeronautics, Tallahassee, FL.
From September 1943 until June 1946 he served in the US Army Air Forces at several locations in the U.S. teaching aviation engine and airframe mechanics theory, maintenance and overhaul. This included one year at the University of Toledo, Ohio. He was honorably discharged in 1946.
He was self-employed until May 1957 , providing aircraft and engine maintenance services under contract as a certified technician at Greensboro Airport in Greensboro, N. C.
From June 1957 to August 1960 he was employed by General Hydraulics Corporation as an accessory overhaul mechanic on the C-46, DC-4, and DC-6. From December 1960 to November 1961 he was the founder, owner and chief inspector for Aero Kool Sales and Service. He designed and built all inspection, cleaning, repair and test equipment based on manufacturer's requirements and wrote the inspection procedures manual, which was approved by FAA, and received FAA certified repair station #2028 on December 28, 1961. His company was incorporated as Aero Kool Corporation in 1961. He continued to expand capabilities as a FAA 145 Repair Station with limited accessories and specialized services and to expand capabilities to include the following components: engine oil cooler and oil temperature regulators, engine oil tanks, engine oil dilution and diverter valves, float control thermostats, oil cooler door thermostatic actuator controls.
In 1967 he entered into an agreement with Pan American World Airways, NY and R. Dixon Speas Associates in Miami to produce and maintain a Computer Maintenance Planning Service (C.OM.P.S.) for the Fanjet Falcons manufactured by Dassault of France, marketed by Pan American. In 1970 he acquired "Jet Technical Services." This gave the company the ability to overhaul Wright Power Recovery Turbines (PRT's) for the DC-7 and Lockheed Constellation aircraft. In 1972 his company became the exclusive overhaul and sole facility for Rajay Turbochargers in Long Beach, CA. Shortly after this he acquired the Lycoming distributorship for turbochargers, controllers, pressure relief valves and wastegates. He was listed and used by National Transportation Safety Board as source for determining cause of failures leading to accidents on oil coolers, turbochargers and related system.
In 1980 he moved to a new location and larger facility in Hialeah, FL. In 1987 he relinquished duties to his son as Vice President and Chief Engineer, but retained the role as the chief inspector.
From June 1987 to July 1996 he served as chief inspector for Aero Kool Corporation. He assisted in development, submittal of documents, manuals and procedures necessary to qualify Aero Kool Corporation under the Joint Aviation Authority (JAA) requirements, and became JAA certified. In December 1997 he retired from Aero Kool Corporation but continued to provide consulting services for them on a part time schedule.
He was an avid student of ancient, Greek, Roman and American Civil War history, liked to listen to 40's and easy listening music, and read autobiographies, histories and novels. He was the 2002 recipient of the Charles Taylor Award. He was also active in Greek Orthodox Church activities and a 32nd degree Mason.