I have on my web site the information brochure for the major air show at Moffett Field, on the San Francisco peninsula. It will be held Saturday, June 19th and Sunday June 20th, 1999. This is the show that for years was held at Watsonville, California.
On my Moffett Field Museum page there's also a few photos of Moffett Field when the dirigible Macon was housed there in the 1930s, if you're interested.
Go to
http://www.jimlyons.com/moffettfieldmuseum.html and push '1999 Air Show' or scroll down the page for Macon photos.
-Jim Lyons