Glen was the second born of Lydia Agnes (nee SNYDER) HARRIS PRITCHETT and first born of William Ferris PRITCHETT. His older half-sister Crystal Mae HARRIS stayed with her mother Lydia following Lydia's divorce from Rance HARRIS and second marriage to William Ferris PRITCHETT. Glen had one other younger full brother, Richard "Jerry" George PRITCHETT who was born of that marriage in Arizona and then Glen has another 7 half-brothers and one half-sister by his father William's last two marriages to Ina Louise FLETCHER and then to Alma Jon CHUMBLEY, both of Arizona. Glen also has two more half-siblings, a sister and a brother, when his mother Lydia re-married a third time to Guy Lewis ALLRED of California.

Glen was career United States Navy (USN), first enlisting in 1929 as a Seaman Recruit, but becoming a Fireman 3rd Class (Engineering Division) upon graduation from boot camp. However, after a few years he requested and was permitted to change his designation back to Seaman 1st Class (Deck Division) which better suited his interests. Initially assigned to the USS Lexington (CV-2) and then the USS Saratoga (CV-3; Squadron VF-1B "Top Hatters"), Glen was moved into the Submarine Service in 1934 where he remained a member of the "Silent Service" until 1942. During this period of time he rose in rate from Seaman Recruit to Chief Petty Officer. He served aboard eight submarines (USS Nautilus SS-168, USS Narwhal V-5 or SS-167, USS Bonita SS-165, USS R-11, USS S-22, USS S-24, USS S-33, USS S-44), one seaplane tender (USS Tangier AV-8), three submarine tenders (USS Holland AS-32, USS Griffin AS-13, USS Antaeus AS-21) and 1 destroyer (USS Kalk DD-611) with duty from Boston to Bermuda, the Panama Canal, San Diego, Long Beach, Alaska, Pearl Harbor, far South Pacific (Biak), and his last duty aboard a war patrol submarine was completed in Brisbane in 1942 (USS S-44, Submarine Squadron 5, Brisbane).

After Glen disembarked from his last assigned submarine, sadly that "boat" (S-44) was lost a year and half later with most hands (2 survived) while on war patrol in the North Pacific Aleutian waters. Glen however, had been billeted to the Naval Detachment assigned to General Douglas MacArthur, U.S. Army (Southwest Pacific Area Headquarters - SWPA; located in the AMP Insurance Society Building, Brisbane), and he never "shipped out" aboard a submarine again. While in Brisbane in 1943 Glen received a field commission to the rank of Warrant Officer and also met Gloria "Glo" OSBORNE during that same time where they shared common interests in their affection for all things aviation, golf, tennis, swimming and beachcombing. In 1944 Glen received a second field commission to that of Ensign and again, shortly thereafter "Glen and Glo" married in Brisbane. Following their marriage Glen received orders back to America but not before being diverted to Biak, New Guinea for temporary duty. He was granted the most unusual of permissions to bring with him his "war bride" and he subsequently arranged passage for he and Gloria on the USS Cucamongya, a naval oiler, which crossed the vast Pacific under war time "blackout" conditions until they arrived safely in New Orleans just before Christmas 1944.

Duty stations continued to read like a travel brochure with tours in Long Beach, CA, NAS Clinton, OK, Houma, LA (New Orleans NAS), NAS Coco Solo, Canal Zone, NAS Norfolk, VA, Long Beach and finally concluding his naval career at NAS North Island in 1953, a naval air station (NAS) adjacent to the City of Coronado in San Diego County. Eldest son Glen, Jr. was born in New Orleans in 1945 followed by Richard in Coco Solo in 1947. Along the way Glen moved further onward and upward in his naval career to a point where he became a Lieutenant Commander (LCDR) before he retired in 1956.

Glen was most proud of his naval service to America and he would be the first to help anyone understand what a "Mustang" or "Black Shoe" was, both terms of respect, honor and endearment ascribed only to those that rise from the enlisted rates and who eventually become a commissioned naval Officer in the United States Navy. Glen's naval career epitomized the "can do" spirit that helped America win World War II.

Following his retirement in 1956 Glen embarked upon his second and last career when he became a life insurance "Field Agent" with the Franklin Life Insurance Company. Two years later at the request of his growing clientele Glen purchased Torrey Pines Insurance Agency (TPIA), a property and casualty insurance agency located in La Jolla to better serve their insurance needs. True to Glen's "mustanger" nature he became an Independent Agent (commercially then known as the "BIG I"), representing many insurance companies for his clients as a "broker". A year later Glen relocated the agency to Propect Place where it remained for many years. In the late 1960's Glen eventually took in two partners and the business was incorporated as Torrey Pines Insurance Agency, Inc. By early 1977 the two partners had become ill suited and were no longer beneficial to the welfare of the business, so Glen founded, Glen F. Pritchett & Sons, Inc., taking one third of the customers with him to the new entity. Glen's sons Richard and Glen, Jr. orchestrated and physically executed the agency move to new quarters just off downtown La Jolla on Herschel Avenue. Glen died several months later in August of 1977 and the agency was eventually sold to his long time loyal and devoted employee, Mary Ann TRAPP. Glen, Jr. eventually captured and reincarnated the business name for his insurance practice in honor of his father and brother Richard. The business name continues today (2008) in the time honored tradition first begun in 1956 when Glen entered the insurance business over 52 years ago.

Glen died at Scripps Memorial Hospital in La Jolla following a 5 year fight with prostate cancer. His cremated remains were scattered at sea off Pt. Loma, a landmark he saw quite often when departing and returning from sea during his submariner days.