Back of the postcard. Some of the wording is not readable. It looks like the postcard was sent to a woman, Miss Stewart of California, from Paul Smith.
Howard Hughes, Tom Thurlow, Harry Connor, Richard Staddart, and Dale Powers with an unidentified aircraft behind them in New York. Typed on a piece of paper attached to the image: "Hughes flies to New York for hop to Paris. L to R L. Tom Thurlow and Harry Connor, Hughes, Richard Stoddart and Dale Powers. 7/4/1938."