Are you on Facebook? I did a google search for her and found that Mary Ann Sheppard is on Facebook - you could send her a message and ask if she is the same one that designed it and if so, does she still sell the pattern...
I also found it here..
http://www.antiquedollhouseofpattern...oducts_id=8089
http://www.shopgoodwill.com/auctions...n-5767273.html
I have to say that it's a really cool duffel bag looking thing. I'd be all over it if I had the pattern :) Very sharp.