Exploring Cordwainer Smith, by Andrew Porter
An anthology of articles about Cordwainer Smith in a 1975
booklet, Exploring Cordwainer Smith, edited and
published by Andrew Porter has some interesting
bits in it. I thought so several years ago when I read it,
but I don't have my copy with me at present. I think it's of
greatest interest to scholars and serious CS fans.
It includes articles by John Foyster, Arthur Burns, John
Bangsund, and several other writers in its 33 pages, which also
include a bibliography (as of that date, of course), and some
background and chronology.
It can be found online at alibris -- that's a link with the
search details embedded in it.
and you could try Amazon or eBay.com. -- general links.