Other than the few I see on Rick site
http://www.indiancent.com I haven't seen any really new information on them. Frank Leone told me he still has a few copies of the three Thurman books, he put the last two together, and some are in color. If you still want a set I'd suggest contacting him soon. It was over 6 months ago I last spoke to him about them, and purchased a set.
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013!
ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector.
See my want page:
http://goccf.com/t/140440