Lots of good female singers have character in their voices....even today.
So many come to mind.... I particularly have e number of favorites.....mostly in the country/folk world
Emmylou Harris is first and foremost, Trisha Yearwood, Kathy Mattea, Allison Krauss, and going back to the 70's one of my early favs was Sandy Denny
http://www.youtube.com/watch?v=XI_8ArJgDgc <<<< Sandy Denny singing a Bob Dylan song.