There actually was(I use past tense because I don't know if they are still active)an actual all-female group that called themselves Babes with Axes. They were based in Eugene, OR and seldom toured, but one time did make an appearance in Chicago and went to see them. I believe each of them had solo careers as well. One of the members was Laura Kemp, but can't recall the other two right now. I'm sure you can find out somewhere on the web per Google.

And I'm sure there will continue to be more female guitarist just as there are now so many more female doctors, lawyers, etc. JFK had a female doctor when there will still very few of them.