I am bemused by Jim's account:
"Bob Thomson, through his friendship with Ken Goldstein, learned of the existence of The Carpenter Collection and how it was discovered locked away in Carpenter's garage.
Bob and I were friends and on a visit to his home he told me about it and suggested that a copy should be obtained by the V.W.M.L - Bob also introduced us to Goldstein while he was visiting London, who told us more.
I passed on the information to the then Librarian (I think it was Barbara Newlyn, but it might have been Theresa Thom) and she acquired a copy of the recordings and a microfiche set of the transcriptions
The rest is history"

As Steve says, the exercise to add the Carpenter stuff to the other material on the VWML site is recent. My understanding was that the whole lot passed at some time (years ago) to the Library of Congress, where it could be accessed by visitors but not otherwise. If "a copy of the recordings and a microfiche set of the transcriptions" were available in the VWML (or anywhere else besides the Library of Congress) that is news to a lot of people.