Have you tried men's shoes for short and wide? I had a friend who only shopped in men's shoe dept -- she said women's never fit, cuz her feet were almost square!
That said, I used to wear Birks, but had to quit because of plantar fascitis; now wear Chaco's, which do come in wide width, men's and women's; the straps are totally adjustable, which I need for my narrow feet. You might try Zappos.com for free shipping both ways if you want to try out a new style. They carry many brands.