I can find a number of books and internet sites about the Schneider Trophy races and the aircraft involved from 1913 to 1931 but very little on the pilots involved.
I have found a copy of the book by Augustus Orlebar and have found reference to "Wings" by Henri (Henry?) Biard (If you know of a copy for sale, please let me know) but apart from these books, I can find very little, even on the internet. A book written by Dárcy Greig is due for release later this year.
If anyone can suggest some good sites or other books, please let me know.