For the collectors here, there are some really interesting items for auction at Julien's Auctions---they have Gleason's passport from the 1950s, some drawings he made for his girlfriend/fiancee and some early unpublished photos. I don't think the auction has been well publicized, so many of you may be unaware:

http://www.julienslive.com/view-auctions/catalog/id/212/lot/88982/?url=%2Fview-auctions%2Fcatalog%2Fid%2F212%2F%3Fpage%3D5

Thanks. Unfortunately, the things that I am looking for (unreleased Hobeymooners sketches) are not there apparently.