My scenario that I am doing for the games day was taken straight from this site. He has sections on Swedish Aviators in WWII fighting in Finland and with the RAF. There are sections on BiPlane aces during WWII. This section features pilots from a large number of countries. Data on their prewar service is present (especially Italians fighting in Spain). Chinese and Japanese pilots are present. I did not know that the Japanese even had any biplanes. A large section is present on the Spanish Civil War as well.
Head on over and check out the site. Its a treasure trove.