From the Howard Cannon Photograph Collection (PH-00192). Stamped on verso: "Photo by: Ankers Capitol Photographers 316 F Street, N.E. Wash., D.C. 20002 Phone (202)543-2484", possibly members of the Aero Club of Washington, D.C.
Description printed on photograph's accompanying sheet of paper: "New York reception for Howard Hughes and his four companions after they completed a round the world flight. 7/15/38."