financially able to acquire materials for 200 bodies, North Carolina split the bid between Thomas and Hackney Brothers. Dependent on length, Thomas offered wood-bodied school buses for $195 to $225. Following the completion of its second school bus bid in 1937, the company focused nearly all production on school bus bodies. In what is a long tradition that continues to the present day, Thomas remains the primary supplier of school buses to North Carolina. In 1938, several major innovations were introduced by the company to its school bus design, including its first steel-bodied school bus. While Perley Thomas streetcars had adopted steel construction in 1918, school bus design had slowly evolved from farm wagons, with wooden body construction continuing into the 1930s. Although not the first to construct an all-steel body, Thomas introduced one-piece roof bows, internal roll bars welded to each side of the floor/frame structure. While the design has been updated for added strength, the one-piece roof bow is in use in all school buses manufactured in North America today. In another innovation, Thomas introduced an outward-opening entry door, designed to aid egress in emergency evacuation situations. 1940s In 1940, day-to-day operation of Thomas Car Works was turned over from Perley Thomas (who remained company president) to his three children. John W. Thomas managed company operations along with sales, along with James Thomas handling the High Point factory. Following the outbreak of World War II, as with its competitors, Thomas bus production was shifted towards the armed forces. In a contract shared with Ward Body Works, Thomas also produced various bodies for the GMC CCKW truck. While the war had brought school bus production to a halt, the High Point factory remained utilized in civilian capacity. To supplement its armed forces production, Thomas Car Works was put to use by refurbishing streetcars. As rationing had placed increased demands on public transportation, the upkeep of existing equipment was considered a priority. Following World War II, with a rise in student populations, Thomas Car Works began to expand its sales market beyond the South, opening dealerships across the eastern half of the United States. To better weatherproof its entry door, the company developed a reinforced rubber-covered door hinge; the rubber also covered the gap between the two door panels as they closed. After World War II, a third generation of the family joined the company, with John W. Thomas Jr.