Constituted as Company C, 1st Battalion, 48th Quartermaster Regiment on 1 May 1936. Activated 1 August 1940,
the unit was temporarily stationed at Camp Custer, Michigan. Company C, was sent to Camp McCoy, Wisconsin to
participate in combat team exercises on 29 April 1941. Returning to Camp Custer on 6 May 1941, the unit was sent
to Camp Forrest, Tennessee for further training until 4 July 1941. The company returned to Camp Custer,
Michigan until 6 August 1941, when it was then sent to Arkansas to participate in the "Louisianna Manuvers." The
unit arrived back at Camp Custer on 20 October 1941. On 28 December 1941, the company was transfered to
Camp Stoneman, California and staged there until 14 March 1942. Finally, Company C sailed from San Francisco
Harbor enroute to a permanent overseas station in the far east. Company C left California aboard the luxary liner
"Queen Elizabeth" and arrived in Brisbane, Australia on 7 April 1942. On 2 December 1942, Company C, 1st
Battalion, 48th Quartermaster Regiment was redesignated the 3523d Quartermaster Truck Company. The 3523d
remained in Australia until 10 December 1943. The 3523d was transfered to Goodenough Island, where they
remained until 10 August 1944. On 11 August 1944, the 3523d loaded aboard a navy ship, "LCI 971", and headed
for New Guinea. The 3523d were transfered to the Philippines on 25 October 1945. On 20 November 1945, the
3523d was assigned to occupation duty in Japan . On 30 June 1947 the 3523d Quartermaster Truck Company was
redesignated the 539th Transportation Truck Company. On 30 October 1950, the 539th deployed to Korea and was
assigned to the Eighth United States Army. The 539th was awarded four unit citations for outstanding performance
against the enemy in Korea. On 1 June 1955, the 539th Transportation Company was inactivated in Korea. On 21
August 1962, the 539th Transportation Company was activated and assigned to the Second United States Army, at
New Cumberland Army Depot, Pennsylvania, as (Army Aircraft Heavy Maintenance & Support). On 25 October
1966, the unit was redesignated the 539th Transportation Company (Aircraft Maintenance)(General Support), with
an authorized strength of 5 Commissioned Officers, 8 Warrant Officers, and 241 Enlisted personnel under TO&E
55-458E. On 13 January 1967, the 539th was alerted for service in Vietnam, and was asigned to the United States
Army Pacific. On 11 April 1967, 5 Officers and 211 Enlisted personnel departed California on the "USNS Pope".
The ship arrived in Vung Tau, Vietnam on 3 May 1967. The company was assigned to the 520th Transportation
Battalion (AM&SGS) at Phu-Loi, South Vietnam on 23 March 1967. The "Hexmates" of the 539th Transportation
Company (AGS) provided general support and backup direct support for 1,100 aircraft. The 539th Transportation
Company (AGS) was inactivated on 30 June 1971 at Phu Loi, Vietnam.