There are too many for me to draw a full list, but here are a couple of women who might otherwise go unmentioned: Odetta and Koko Taylor. Check out "Gallows Pole" and "Wang Dang Doodle", respectively. I think pretty much everyone has taken a shot at "Wang Dang" and I'll take Koko's over the whole lot of 'em (including Howlin' Wolf's version). Just MHO.
Marty
Marty