Cliff- I happen to have a copy of his book I picked up a couple of years ago.It too is signed by Roy and Frieda Hoff,a personal inscription on the page with the photo of Roy and Frieda next to the "Forward" page.It says "Best Wishes from Roy Hoff and Frieda Hoff to Lloyd English our archery friend of more than a quarter of a century!"
I have read some parts of the book and found it quite interesting.
In the same vein of Roy Hoff,several years ago I aquired a hard bound set of the first 5 years of Archery magazine that was given as a gift from the Hoff's to A.J. Michelson of Flint,Michigan. I'm sure you are familiar with A.J.,he had a monthly article in Archery magazine called Blunts from the Old Stump.
Any idea on who Lloyd English might be?