1 November 1915. Capt. Raynal C. Bolling organized and received appointment as commander of the First Aero Company, New York National Guard. His organization is recognized as the first National Guard Aviation unit.
2 November 1916. The First Aero Company, New York National Guard, mustered out of federal service at Mineola, New York.
November 1920. Maj. Gen. Milton Reckord, the Adjutant General of Maryland, met with members of the American Flying Club, a civilian organization promoting the development of aviation in the U.S., to discuss the possibility of establishing a National Guard flying squadron in his state. Most members of the club were Army Reserve officers who were flyers. This meeting was a key event leading to the creation of an observation squadron in the Maryland National Guard in 1921.