I too remember Julie Felix from the 60s and saw her here in Austrlaia at Newcastle NSW a few years ago at a small theatre.
Got to talk to her after the show and reminisce a little about the 60s, especially the Isle of Wight 1969 festival which I attended. It was headed up by Dylan and Julie sang there too.. along with a host of others (but that's another story).
Julie was actually married to David Frost for a time.
At Newcastle she still sounded great (and looked good too!) and had her daughter with her. Great lady