Lord lists one unissued alternate take from a Buck Clayton session. Studying the release history in different formats, often adding new tracks from the same session, suggests there might be more. But getting those tracks in session order and from good sources justifies such a set, given the excellent recorded sound of this music.
HEP in England also issued several discs of AFRS Jubilee material, West Coast big bands, Raeburn, Benny Carter etc. Always good music.
There was a discography by Rainer E. Lotz and Ulrich Neuert, published in 1985 by Norbert Ruecker.