As requested...

Todd sent the following to me in response to my request for a quick info fix...

Dear Greg,

I hope that you don't mind me e-mailing you directly about Roger Lancelyn Green, but I thought that this was the quickest way
of getting the information to you (given the length of the queue and the fact that I know that you don't dare read much of the
comment room because many of the people there post "creativity demons" there).

At any rate, you're correct about the spelling: it is Roger Lancelyn Green. The title of the book is "King Arthur and his Knights
of the Round Table".

Todd Jensen