In 1967 - 68 he compiled , with Neil Slaven , the groundbreaking discography Blues Records 1943 - 1966 , and through a great many articles .
Discographical research led the way in documenting the careers and recordings of hitherto under - recognised blues musicians .
In 1967 - 68 he compiled , with Neil Slaven , the groundbreaking discography Blues Records 1943 - 1966 , and through a great many articles and discographical research led the way in documenting the careers and recordings of hitherto under - recognised blues musicians .