Bingo! That's it! Actually, I didn't have to hold my finger on the station - just touch it to highlight it, then touch the Delete box.Settings-Radio- Manage Favorites-hold finger on station to be deleted for a few seconds- hit Delete box, lower right corner.
I admit my defeat...this actually is in the manuals...but since I was in the car reading through the paper version I overlooked it. I found it doing a search in the PDF versions