GIRLS WITH GUITARS
The first all-female rock band that was signed to a major rock label was Goldie and the Gingerbreads, consisting of Ginger Bianco (drums), Margo Lewis (organ), Carol MacDonald (guitar and vocals), and Goldie Zelkowitz (lead vocals). They were active from 1962 to 1967 and released a handful of singles; I got to hear some of their songs on a compilation album called Girls with Guitars.
(October 2013)