Yes, they’re out of print now. They were called “Pops for Harp” and they were probably the first pop collections of harp arrangements. I’m not sure of the original publication date (my copy has lost the front matter), but it was long enough ago that they had Peter Max type psychedelic cover designs.
This was way before any of the harp companies got into the publishing business. Her daughter, Laura Lou Roth, has talked about having them reprinted but I don’t think anything ever came of it.
They were nice arrangements, showy but not terribly difficult. Good working gig stuff.