I don't think this went through the first time: >From the September 1972 newsletter at http://www.dead.net/cavenweb/deadfile/Newsletter4.html
"For those of you that are able to attend any of the upcoming gigs you may notice that Pig Pen isn't on stage. He's still with us for sure, but he's home resting and recovering and we expect he'll be back on the road by the beginning of next year and probably working on his own album as well." His own album...what might've been...sigh....