Mantis- Just so you don't have to look to hard Take a peek in Schwiebert's book "Nymph's" on page 118 about 2/3 of the way down the page it say's "Since my fly-tying was learned just after the Second World War from William Blades, and his Fishing Flies abd fly Tying"
There is another place in one of his book's were he tell's of his father sending him to Blades to be taught. Just can't remember which book it was in. Ron