Photograph of William E. Boeing's Martin Model TA Hydro seaplane in a tent hangar on Lake Washington, Washington State, circa October 1915.Inscription on verso: "Return to Dr. Drew."
Photograph of William E. Boeing's Martin Model TA Hydro seaplane in flight over Lake Washington, October 21, 1915.Inscription: "Martin Seaplane - Lake Washington 10/21/15."
Photograph of William E. Boeing's Martin Model TA Hydro seaplane on Lake Washington, October 21, 1915.Inscription: "Trial trip 10/21/15 - Lake Washington - Martin Seaplane."
Photograph of William E. Boeing (left) and an unidentified man with Boeing's Martin Model TA Hydro seaplane, Lake Washington, October 21, 1915.Inscription: "Our return from flight over Seattle 10/21/15."
Photograph of William E. Boeing's Martin Model TA Hydro seaplane in flight over Lake Washington, October 21, 1915.Inscription: "Martin seaplane - Lake Washington, 10/21/15."
Letter to William E. Boeing from Henry Woodhouse, Aero Club of America, December 16, 1915. Letter discusses Boeing's nomination as a non-resident member to Aero Club of America. One typed page.
Letter to George Conrad Westervelt from Alan Hawley, President of Aero Club of America, December 16, 1915. Expounds upon necessity of aircraft in military and asks for chapter support for the National Aeroplane Fund. Three copies. Four typed pages on…
Letter to William E. Boeing from Henry Woodhouse, Aero Club of America, December 21, 1915. Expresses gratitude for a framed picture that Boeing sent. One typed page on National Aeroplane Fund stationery. Two typed pages.