Ah, that's sad news. RIP [video=youtube;XbAM2_6jKY0]http://www.youtube.com/watch?v=XbAM2_6jKY0[/video]
Me too, early 70's, with mum and dad with their brother on drums. As you say they were only kids but very talented, The Brunswick was packed every time we went to see them. Sad loss.
Mad that her and her sisters sold more records than Beatles did in Japan. Very good actress too. She will always be the mum of Ray Quinn in Brookside to me.