The 2761st Engineer Battalion (Special) at Sandia was commanded by Colonel Gilbert M. Dorland, and consisted of a headquarters company, a security company (Company A), a bomb assembly company (Company B) and a radiological monitoring company (Company C), although Company C was never fully formed. For training purposes, Company B was initially divided into command, electrical, mechanical and nuclear groups, but the intention was to create three integrated 36-man bomb assembly teams.[22] To free the bomb assembly teams from having to train newcomers, a Technical Training Group (TTG) was created under Lieutenant Colonel John A. Ord, a Signal Corps officer with a Doctor of Science degree from Carnegie Institute of Technology who had directed the training of thousands of radar technicians at the Southern Signal Corps School during the war.[23] The battalion was redesignated the 38th Engineer Battalion (Special) in April 1947, and in July it became part of the newly created AFSWP Field Command, under the command of Brigadier General Robert M. Montague. The TTG was soon reporting directly to Montague as well.[24]