1 person found this helpful
This is relatively easily achieved using the new Sensei AI based search in Lightroom CC. However, this technology is not yet in Lightroom Classic. As such, you'll need to continue using whatever method you've been using up to now. Alternatively, you could download a copy of Lr CC then import your images into same.
Thanks for getting back with that information.
I did not realize that the Lightroom CC app could perform that kind of search. I'm not sure how practical it would be to download the app and then import 30,000 images to it.
For the time being I will continue using my current method of searching, slowly and laboriously searching my database.
Thanks for that tip off john, I'll give it a go.