This collection consists of three oversized certificates presented to William Thaw, 1918 – 1919.

William Thaw II (1893 – 1934) was a World War I ace and is believed to be the first American to engage in aerial combat in the war as one of the original nine members of the Lafayette Escadrille. Born into a prominent Pittsburgh family, Thaw attended Yale University but left to learn to fly at the Curtiss School of Aviation at Hammondsport, New York, in 1913.  Soon after he was the first to pilot an aircraft up New York City's East River and fly underneath all four bridges. By the summer of 1914, Thaw was in Paris, along with his personal Curtiss Motel E Hydro, and had received the Aero Club of France F.A.I. Hydro License 2. When war started, Thaw joined the French Foreign Legion and by December he was transferred to the French aviation unit, first as an observer, then as an active pilot. In May of 1916 Thaw was commissioned as first lieutenant and shortly after he was shot in the arm during combat. After his recovery, he resumed active duty and in November he was transferred to the American Air Service and commissioned a major. In January 1918 Thaw was given command of the American Lafayette Escadrille, 103rd Pursuit Squadron and in August he was given command of the 3rd Pursuit Group and was promoted to lieutenant colonel. After the war, he returned stateside and from January to June 1919 he was the commanding officer at Rockwell Field, San Diego, California. He was honorably discharged in July of 1919. During his service he received many honors and decorations.