Final answer:
The year the first formal NCO course was conducted at Medical Field Service School in Carlisle is not specified in the provided documentation. Records suggest various historical military training events but do not mention the specific NCO program at Carlisle Barracks.
Step-by-step explanation:
The first formal course of instruction for NCOs (Non-Commissioned Officers) at the Medical Field Service School in Carlisle Barracks, Carlisle, Pennsylvania, is not clearly stated within the provided documents. Considering the significance of such training, detailed records would likely exist; however, the information given primarily highlights various historical aspects of military training and medical services that do not specifically mention the initiation date of the NCO course in question. Relevant historical points include the training influence of Friedrich Wilhelm von Steuben during the Revolutionary War, the role of NCOs in segregated units during the Korean War, and the extended training of African American units in World War II. Without direct reference to the Medical Field Service School's NCO course commencement year, we are unable to provide a definitive answer.