In response to your message I would suggest that you contact our editor for the REED London parishes/Middlesex collections, Mary Erler. Mary's other areas of interest include the history of the book and I know that she has had to look for records of the bishops of London for her REED research. As far as we know, Mary has not yet converted to e-mail correspondence so I can send you her conventional address: Prof. Mary Erler, Dept. of English, Fordham University, Bronx, New York 10458. Good luck! Sally-Beth MacLean @ Records of Early English Drama.