Walter MacLaughlin Robert Taylor Matthew Bishop Liesl Schernthanner Jason Medley Matt Shildneck David Jennings Shannon Womble John Mielcarek Vince Cox Chris Cunning Not listed above: Rob LaBarre and Johan Booth
Nancy Swearengin Gary Wright Jacy Manzke Alana Jones Dean Klein Diane Wetterlin Carol Crossland
Okay, I checked Nadene Kennedy's official NSF Antarctic treaty records to decipher the signatures, and my analysis has been verified by someone who was there. It seems that this bunch of folks includes some who were only on station between July and September. Well, that is winter, I guess. There are 20 Palmerites depicted on that colorful plywood panel, and there were 20 people at Palmer when the photo was taken...so that is all.
Thanks to Glenn Grant for presenting this most interesting puzzle!