Here's a major new discovery. Jim Laukes, an independent scholar in Chicago (and good friend), has acquired and digitized a filmed interview of George Fred Keck, from the mid-1970s. He has posted these to Vimeo. Links below.
As I've mentioned before, there has been very little scholarship about Keck relative to his importance. So this is quite important for architectural history.
Jim promises there are other interviews to come. He blogs here.