Stumbled upon this on u-toob. Always down for a little Dorothy A. These all sound like solo recordings, I'm not really hearing any overdubs, just Mrs. Ashby doing what she did best on her harp. Looks like her last studio recording.
The album artwork is by Yoko Ochida, who, yes, did the Henri Rousseau-like cover for Midori Takada's Through the Looking Glass, which you can snag here.