Marie Postcard Collection. Gulfport Field

Marie's Postcard Collection.  Gulfport Airfield, Gulfport, Mississippi.  This is from Charles "Jones" Foster to his mother.  When he was in training learning to be a pilot was sent to schools all over the U.S., which left a trail of postcards.   Where the stamp goes on a postcard he wrote the word FREE.  I suppose, in WWII servicemen got postage.