The first award of the Distinguished Flying Cross was made by President Calvin Coolidge on May 2, 1927, to ten aviators of the Air Corps who had participated in the U.S. Army Pan American Flight, which took place from December 21, 1926 to May 2, 1927. Two of the airmen died in a mid-air collision trying to land at Buenos Aires on February 26, 1927, and received their awards posthumously. Since the award had only been authorized by Congress the previous year, no medals had yet been struck, and the Pan American airmen initially received only certificates. Among the ten airmen were Major Herbert A. Dargue, Captains Ira C. Eaker and Muir S. Fairchild, and 1st Lt. Ennis C. Whitehead.