Letter to William E. Boeing from Alan Hawley, President of Aero Club of America, March 15, 1916. Discusses need for monetary support for military aviation to "protect the lives of the thousands of soldiers participating in the Mexican expedition."…
Letter to William E. Boeing from Alan Hawley, President of Aero Club of America, March 15, 1916. Discusses need for monetary support for military aviation to "protect the lives of the thousands of soldiers participating in the Mexican expedition."…