Mr. Adair began his career with the Osmond Post Cadets in 1939 playing a soprano. He assisted with drill design and instruction during the period in which Osmond won 2 National titles. Reilly Raiders was his choice as a senior corps where he continued playing lead soprano. Don joined the Marine Corps Divisional Band as a percussionist. He was the brass arranger/instructor for the Hadden Heights Vagabonds, Ridley Park Rangers, PAL Cadets, Bracken Cavaliers, and Reilly Raiders Alumni. Don was a charter member of the NJA and the original original brass caption head.