“20 [July, 1918] — The RAF Station, Killingholme, England, from which U.S. Navy pilots had been flying patrols since February 1918, was turned over to American forces and established as a Naval Air Station, Lieutenant Commander K. Whiting in command.”
“The former British seaplane patrol station turned over to the U.S. and commissioned as NAS on 20 July 1918. It closed 22 February 1919.”