LT Stephen Thompson uniform

(Left) British Royal Flying Corp cap, tunic, trousers and flying equipment worn by Capt. William C. Lambert during World War I. The bar decoration below the RFC wings on the tunic was the ribbon design for the original British Distinguished Flying Cross. (Right) Uniform items worn by Lt. Stephen W. Thompson on Feb. 5, 1918, when, while flying as an observer with the French, he became the first person in U.S. uniform to down an enemy airplane. (U.S. Air Force photo)

(Left) British Royal Flying Corp cap, tunic, trousers and flying equipment worn by Capt. William C. Lambert during World War I. The bar decoration below the RFC wings on the tunic was the ribbon design for the original British Distinguished Flying Cross. (Right) Uniform items worn by Lt. Stephen W. Thompson on Feb. 5, 1918, when, while flying as an observer with the French, he became the first person in U.S. uniform to down an enemy airplane. (U.S. Air Force photo)