These were shared at DNC by Gordon the Drummer.
The 921 link has two minutes of pure gold, starting with the Grateful Dead playing "Caution", high quality color and sound, a bit distant (but correspondingly atmospheric) in the Panhandle. Wow.
GtD says "In these clips I'm hearing bits of Caution, King Bee, Viola Lee Blues, and an unfamiliar blues shuffle tune sung by Garcia". The last piece sounds pretty interesting to me, would love to hear what others hear.
The link ending 927 is mostly atmosphere, but it's fascinating. A lost child is named - it'd be interesting to interview all of those kids that are announced as lost at Dead shows, "Frank" and all those people. I don't quite catch the name on my one pass-through.
See also http://lostlivedead.blogspot.com/2010/01/january-april-1967-grateful-dead.html;
posters: URL http://www.deadlists.com/posters/1960s/19670409b.html;
The Longshoremen's Hall and Panhandle performances are well documented - The Panhandle sometime in the afternoon (plenty of photographs exist) and Longshoremen's late in the evening. However, there was planned a 2PM Haight-Ashbury "Street Dance" show organised by The Diggers (for one hour). I have always separated this from the Panhandle event as it followed a street theatre event at Haight & Ashbury - and it was called "Street Dance" - which would be inappropriate for Speedway Meadows.
Anyway, again, very cool to be able to see and hear even tiny snippets of this. My thanks to all involved in making that possible!