Steve,
I just had my wife try the boots on with just a very thin pair of socks, and I think there is hope for them fitting your wife. She is between a 9.5 and 10, but in length only, her feet are fairly low in the arches and VERY narrow. She said her toes were on the ends of the liners, the height was about right, and the width was a little wide for her feet. With normal heavyish skiing socks these may fit your wife just fine. Anyway, hope that info. helps.
ER
PS, if you send me your e-mail address I have a couple digi pics I can send you. I can't attach them here as they are too big.