I too had the pleasure of seeing Blind Blake in his later years.
I have   several of his albums and some cassettes with him on it that I got in the Bahamas, while living there. He was truly a wonderful musician. His early work was by far his best, musically, as it did not have the American influence of the later sfuff. There are a couple of his later recordings, which are still played on ZNS (Radio Bahamas 810 AM), which are very poor, but still better than most of the modern music! There has been a resurgence of old music in the Bahamas in the last two years, with artists redoing old standards like, Eight Babies, Deila's gone, and others. As a guitarist, I have picked up alot of his old tunes, and always have fun playing them for people. My favorite memory was playing "Jones OH Jones" at a remote beach bar in Abaco, Bahamas. The Barthender looked at me and laughed " Boy wheh ya lean dat from? I ain heard dat in years" Anyway, Blake was a true great, and his presence is still felt in Calypos in the Bahamas. It is not uncommon for mothers to sing their young childern to sleep to "Conch aint got no bone". Anyone interested in any clairification on words in Bahamian songs, feel free to email me, as I am very fluent in Bahamian slang and music, and might be able to help. Email me at Busman1965@aol.com