This book details his letters dealing with magical/Craft topics written to Joe Wilson, founder of the 1734 Tradition in the USA, Norman Gills, a traditional witch and 'cunning man' of the old type with Romany ancestry and William 'Bill' Gray, well known in the 1960s as a writer on the Cabbala and a ceremonial magician. In 2001 Cochrane's surviving widow legally handed over the copyright of all his correspondence, writings, artwork and articles to Evan John Jones who was a member of Cochrane's coven in the 1960s and is the past magister of the Clan of Tubal Cain. The decision was taken to publish these letters, except for a few of a very personal nature, together with notes to explain their contents and place them in their historical context - this book is the result.