Our Young Aeroplane Scouts In France and Belgium / Or, Saving the Fortunes of the Trouvilles. E-book. Formato PDF Horace Porter   -  Ionlineshopping.Com, 2019  - 

Set in the early years of World War I, while the United States was officially neutral, so our Aeroplane Scouts are having adventures with the countries on both sides. In this volume, they are in France and Belgium. The full name of the author was Horace Porter Biddle De Hart (per LibraryThing), not to be confused with the Horace Porter associated with President Ulysses S. Grant.