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After the war, he was given a position as a chief at the Research and development, Ordnance Department.
Auto-Ordnance was a U.S. arms development firm founded by retired Colonel John T. Thompson of the U.S. Army Ordnance Department in 1916.
The first gun ever rifled in America was made at his works in 1834, and the first perfect bronze cannon was made at his foundry for the U. S. ordnance department, The mortar “Columbiad,” the largest gun of cast iron that had then been made in the United States, was cast under his personal supervision.
1944, February: Major General Gladeon M Barnes, chief of the Technical Division of the Office of Chief of Ordnance in Washington, sent teams of the War Department and the Ordnance Department of the Corps of Engineers to look for a US site for missile research.