This isn't so much of a #fictionnonfictionpairing, as it is a tree of books. I read Wings To Fly, discovered the amazing aviatrix Katharine Stinson & read up a ton on her & women in aviation leading up to & during WWI. As Stinson & her family trained male aviators in the war, that led me to read nonfiction on that topic which led to memoirs/bios which led to fiction written by men involved in WWI aviation. Oh, and all this led to a novel I wrote.