@Moondance thank you for this thread; thoroughly enjoyable to see this.
for those of you who do not know this, the Center for Creative Photography at the University of Arizona in Tucson houses the Ansel Adams archives, as well as those of other important photographers; here's a link to its website:
http://www.creativephotography.org/about-us-0
it is definitely worth a visit if you are ever in this part of the country