A history of the Catholic League, the movements that led to it, its life and longer term and wider significance is now published by the Canterbury Press.
Written by the distinguished papal and Catholic historian, Dr Michael Walsh, it also has a foreword from Bishop John Hind who led on Anglican-Catholic dialogue for the Church of England as Bishop of Chichester.
All members of the League receive a complimentary copy. For others, and to order further copies, here is the flyer from Canterbury Press.
Alternatively, here is the link to purchase on Amazon. And here the link to order from Canterbury Press.