I've been talking to a fine gentleman who owns and restored a 1947 Cabin Car. He's been great about sharing pictures of his trailer and the history he knows of them. He bought his trailer from an employee of the company that originally built them.
He was happy to let me post his pictures and info on my site so I updated my Cabin Car page. His trailer is in storage for winter right now but tells me he will take additional photos when he gets it out for the season.
Here is the address of the page: http://www.nicksteardrop.com/cabincar.htm
Enjoy!
Nick.