Question: What year was the company, which created the M6 Bomb Service Truck during World War II, founded?

Context articles: Benham-class destroyer
Marmon-Herrington
M6 Bomb Service Truck
M6 Gun Motor Carriage
Bliss–Leavitt Mark 8 torpedo
Josephine Herrick
Su-Ki
91st Bombardment Group
1996 Manchester bombing
Chevrolet

The "Benham" class of ten destroyers was built for the United States Navy (USN).
 They were part of a series of USN destroyers limited to 1,500 tons standard displacement by the London Naval Treaty and built in the 1930s.
 The class was laid down in 1936-1937 and all were commissioned in 1939.
 Much of their design was based on the immediately preceding "Gridley" and "Bagley"-class destroyer s. Like these classes, the "Benham"s were notable for including sixteen 21 in torpedo tubes, the heaviest torpedo armament ever on US destroyers.
 They introduced a new high-pressure boiler that saved space and weight, as only three of the new boilers were required compared to four of the older designs.
 The class served extensively in World War II in the Atlantic, Mediterranean, and Pacific theaters, including Neutrality Patrols in the Atlantic 1940-1941.
 "Sterett" received the United States Presidential Unit Citation for the Battle of Guadalcanal and the Battle of Vella Gulf, and the Philippine Republic Presidential Unit Citation for her World War II service.
 Two of the class were lost during World War II, three would be scrapped in 1947, while the remaining five ships would be scuttled after being contaminated from the Operation Crossroads atomic bomb tests at Bikini Atoll in the Pacific.
The Marmon-Herrington Company, Inc. is an American manufacturer of axles and transfer cases for trucks and other vehicles.
 Earlier, the company built military vehicles and some tanks during World War II, and until the late 1950s or early 1960s was a manufacturer of trucks and trolley buses.
 Marmon-Herrington had a partnership with Ford Motor Company, producing trucks and other commercial vehicles, such as buses.
 The company may be best known for its all-wheel-drive conversions to other truck maker's units, especially to Ford truck models.
 Founded in 1931, Marmon-Herrington was based in Indianapolis, Indiana, with a plant in Windsor, Ontario, and remained in Indianapolis until 1963.
 It is now based in Louisville, Kentucky.
The M6 Bomb Service Truck is a truck that was produced by Chevrolet during World War II.
 The M6 was a 1.5 t 4x4 truck that was used to tow M5 Bomb Trailers around on airfields.
 It could move up to five M5 trailers at once.
 It either used a Beebee winch, a Holan Hoist, or a modified version of the Braden winch.
The 37 mm Gun Motor Carriage M6 (also known as M6 Fargo, and under the manufacturer's designation WC55) was a modified Dodge WC52 light truck mounting a light anti-tank gun.
 It was used by the United States Army for infantry support and as a mobile anti-tank gun.
 It operated from late 1942 to January 1945 in the Mediterranean, European, and Pacific theaters of World War II.
 The M6 saw limited use during the war, and was poorly suited to modern warfare as it was unarmored and was armed with a too small caliber gun.
The Bliss–Leavitt Mark 8 torpedo was the United States Navy's first 21-inch by 21-foot torpedo.
 Although introduced prior to World War I, most of its combat use was by PT boats in World War II.
 The torpedo was originally designed in 1911 by Frank McDowell Leavitt of the E. W. Bliss Company and entered full mass production in 1913 at the Naval Torpedo Station in Newport, Rhode Island.
 It was deployed on destroyers and battleships during World War I and cruisers built in the 1920s.
 All US battleships and most cruisers had their torpedo tubes removed by 1941.
 The Mark 8 remained in service through World War II on older destroyers, primarily the "Wickes" and "Clemson" classes.
 It also equipped PT boats early in World War II, but was replaced by the Mark 13 torpedo on most of these in mid-1943.
Josephine Ursula Herrick (August 1, 1897 – March 27, 1972) was an American photographer, humanitarian, entrepreneur and teacher.
 During World War II, she pioneered the teaching of photography to wounded war veterans for the purpose of helping them heal their physical and emotional wounds and re-engage with the world.
 Building on that work, she founded and led an arts-based charity that still teaches photography to veterans, the disabled and other underserved populations.
 The charity that she founded endures to this day, based in New York City and aptly named the Josephine Herrick Project.
 Herrick also served during World War II as a photographer on the United States’ Manhattan Project which developed the atomic bomb.
 Professionally, Herrick was a successful commercial photographer, studio owner and photography instructor.
 As a fine art photographer, she won a number of awards and her work was exhibited in various publications and venues.
The Amphibious Truck "Su-Ki" was a World War II Japanese military vehicle manufactured by the Toyota Motor Co., Ltd.
 It entered service in 1943 and was deployed to Japanese forces in the Pacific during World War II.
The 91st Bomb Group (Heavy) was an air combat unit of the United States Army Air Forces during the Second World War.
 Classified as a heavy bombardment group, the 91st operated B-17 Flying Fortress aircraft and was known unofficially as "The Ragged Irregulars" or as "Wray's Ragged Irregulars", after the commander who took the group to England.
 During its service in World War II the unit consisted of the 322nd, 323rd, 324th, and 401st Bomb Squadrons.
 The 91st Bomb Group is most noted as the unit in which the bomber "Memphis Belle" flew, and for having suffered the greatest number of losses of any heavy bomb group in World War II.
The 1996 Manchester bombing was an attack carried out by the Provisional Irish Republican Army (IRA) on Saturday 15 June 1996.
 The IRA detonated a 1500 kg truck bomb on Corporation Street in the centre of Manchester, England.
 The biggest bomb detonated in Great Britain since World War II, it targeted the city's infrastructure and economy and caused devastating damage, estimated by insurers at £700 million (equivalent to £ in 2015 ) – only surpassed by the 2001 September 11 Attacks and 1993 Bishopsgate bombing in terms of financial cost.
Chevrolet ( ), colloquially referred to as Chevy and formally the Chevrolet Division of General Motors Company, is an American automobile division of the American manufacturer General Motors (GM).
 Louis Chevrolet and ousted General Motors founder William C. Durant started the company on November 3, 1911 as the Chevrolet Motor Car Company.
 Durant used the Chevrolet Motor Car Company to acquire a controlling stake in General Motors with a reverse merger occurring on May 2, 1918 and propelled himself back to the GM presidency.
 After Durant's second ousting in 1919, Alfred Sloan, with his maxim "a car for every purse and purpose," would pick the Chevrolet brand to become the volume leader in the General Motors family, selling mainstream vehicles to compete with Henry Ford's Model T in 1919 and overtaking Ford as the best-selling car in the United States by 1929.