Hope this helps this is from the ole'drome here back in April of '04
There are too many to list, but here are some:
Lafayette Flying Corps- Nordhoff & Hall
Lafayette Escadrille- Thenault
Lafayette Escadrille- Mason
Flying for France- McConnell
One Man's War- B. Hall
En L'Air- B. Hall
Victor Chapman's Letters
Legion of the Lafayette- Whitehouse (everyone's favorite--Not)
War Letters of Edmond Genet
War Letters of Kiffen Rockwell
Letters Home- Nichols
An American for France- Brown
Vivid Air- Flammer
Only the Clouds Remain- Walker
Great Adventure- Parsons
Lafayette Escadrille Biographies- Gordon
My preference is for the volumes containing the letters written by the pilots. They give you a real feel for the moral commitments that led them to fight for something that they did not have to, but believed in.
Hope this helps!
Regards
Stephen L.