twist,
Finally getting to your question re Christine McVie nee Perfect... no, I didn't use a lifeline, just a good memory...
tweedville,
It was Wendy Waldman, not Walderman (I was remembering it as Waldeman myself -- this time I looked it up).
Curiously, she did some work with Maria Muldaur, who's been being mentioned here lately...
...which reminds me of another terrific guitarist other than the great Clarence White, in fact the guy that played the very distinctive, interesting and different guitar solo and fills on Maria Muldaur's big hit, "Midnight At the Oasis" -- I'm talking about Amos Garrett.
And before I let go of Wendy Waldman, seeing her name reminded me of Karla Bonoff, another LA singer/songwriter who had a flash of fame by writing several songs that Linda Ronstadt recorded in her mid-seventies rock heyday...
-AlChuck