Collie Ryan is mine. She did three albums in the 1970s and then basically disappeared. I became aware of her through the use of her (amazing) song "It's Gonna Rain" which was featured on the soundtrack of Computer Chess (2013), a very weird (but good) film that seems to be about a computer chess tournament in the 1980s but gets weirder.

https://www.spinmagazine.com/2013/07/collie-ryan-its-gonna-r...