There is a web page on B-G. Click here.
'at one time he had listed under his name in the catalogue of the British Museum Library more books than any other English author...' - Rev. Bickford Dickinson, B-G's grandson & biographer. (Taken from a foreword written by Cyril Tawney for a compilation of B-G's writings called "Myths of the Middle Ages").
On the subject of C#, whatever you may think of his published versions of folk songs, the fact remains that he collected thousands of songs in England and later in the Southern Appalachians, far more than any other collector. Without him much of this would have been lost altogether.