6. Arch Whitehouse
7. Willy Coppens
8. Taffy Jones
I'm most proud of the Abbott, since it was his personal copy of the book that I now own, and of course Coppens, Springs and Cecil Lewis
. Rickenbacker signed anything that wasn't moving; his signatures are relatively inexpensive and easy to find, and Arch Whitehouse signatures are pretty easily obtained- I own at least 6 books that he signed, from the collection of the late Len Morgan, which is where the Coppens book came from, too. The Jones signature is from a first edition of the Mannock bio that Jones wrote. He signed that one twice, another treasure from the Morgan collection.
I don't actively seek WWI signatures, but these seem to have been destined to come my way.