Presumably Briskers generally daven nusach Ashkenaz. Is there a particular siddur associated with Brisk, perhaps with haskomos from Brisker roshei yeshivos?
I've heard from some that Rabbi Joseph B. Soloveitchik's wife didn't cover her hair. I haven't managed to find a source for this. If there is a source, what is it, and if it's true, what was her ...