Gas Turbine System Technician (Electrical) (GSE) Gas Turbine System Technician (Mechanical) (GSM) Machinery Repairman (MR) Quartermaster (QM) Machinist Mate (MM) Culinary Specialist (CS) A-school was also taught at TSC Great Lakes until December 10, 2010, when the school graduated its final class. The course has been consolidated with the US Army's parallel program and relocated to Fort Lee, Virginia. Hospital Corpsman (HM) "A" School has been moved out of Great Lakes. The last class graduated on July 27, 2011. Its last class was Class 11–125. The school has relocated to the Medical Education and Training Campus at Fort Sam Houston, Joint Base San Antonio, Texas. This change has merged Air Force, Army, and Navy Medical staff to a centralized location. In addition, all Navy rates that require basic electrical knowledge and troubleshooting training complete Apprentice Technical Training (ATT) school. This includes the Mineman (MN) and Sonar Technician (Surface) (STG) rates, as well as some aviation rates prior to detachment to their respective school locations in San Diego, CA and Pensacola, Florida. Boatswain's Mates complete Surface Common Core (SCC) Basic Maintenance Training and engineering rates complete Basic Engineering Common Core (BECC) History Great Lakes was approved in 1904 by Theodore Roosevelt. Construction was supervised by Navy Captain Albert R. Ross. Chicago-area architect Jarvis Hunt designed the original 39 buildings and Lt. George A. McKay was the civil engineer for the construction on the wilderness location; $3.5 million ‎($ today) was appropriated to finance construction. President William Howard Taft dedicated the Naval Training Station in 1911. On 3 July 1911, Joseph Gregg was the first recruit to arrive. He would graduate in the first class of 300. Fifty-five years later, he was buried at the Naval Station Cemetery 5 July 1966. Legendary band leader and march composer John Philip Sousa was commissioned as a lieutenant in the Navy during World War I. He led the Great Lakes Naval Station Band from mid-1917 until shortly after the Armistice was implemented in November 1918. Great Lakes also had a Radio School including two towers constructed in 1915. From 1911 to 1916 around 2,000 recruits a year were trained at Great Lakes. World War I At the start of 1917, just prior to the United States entry to World War I, Great Lakes was under the command of Captain William A. Moffett and had 39 permanent brick buildings, over , and about 1,500 Sailors. At