Kurt Hockenbury sent over a note pointing out this fantastic period resource on Zeppelins- "Zeppelin: the Story of a Great Achievement". The public domain book is filled with information and pictures that would be invaluable for anyone running a pulp-style adventure or event. Some absolutely massive scans of airship deckplans from the book are also available on Flickr, courtesy of "Fings":
You'll find the full-sized version of this deckplan over here.
And this one can be found here.