"The idea for Britain's first female rock band, The Liverbirds, started one evening in 1962, when Mary McGlory, then age 16, saw The Beatles play live at The Cavern Club in Liverpool, the nightclub famously known as the "cradle of British pop music." Then and there, she decided she was going to be just like them--and be the first girl to do it. Joining ranks in 1963 with three other working-class girls from Liverpool--drummer Sylvia Saunders and guitarists...