Arnold, Henry Harley
- John C. Fredriksen
Arnold, Henry Harley (25 June 1886–15 January 1950), airman, was born in Gladwyne, Pennsylvania, the son of Herbert Alonzo Arnold, a physician, and Anna Louise Harley. Arnold received a public education and in 1903 entered the U.S. Military Academy at West Point. A mediocre student, he graduated in the middle of his class in 1907 and was commissioned a second lieutenant of infantry. He served four years with the Twenty-ninth Regiment in the Philippines and New York before volunteering for flight training with the Aviation Section of the Signal Corps. In April 1911 Arnold reported to Dayton, Ohio, and received instruction from the Wright brothers. Two months later he joined the army’s first cadre of military aviators. Arnold subsequently transferred to College Park, Maryland, as a flight instructor and on 1 June 1912 established a world altitude record of 6,540 feet. This act garnered him the first-ever Mackay trophy....