Evan, thanks, I did see that link, but didn't know if I should add it. It is an easier search though. I edited the previous post to include it now.
Also sent a snippy email under my own name to the RHS, asking why other much poorer organizations could put their info online for free while the filthy-rich RHS charged high prices.
Again, under my own name, I emailed the Brooklyn Botanical Garden to ask why there were so few cultivars listed. They have responsibility for an amazing number of woodies, including citrus. That wasn't snippy, just wondering if I'd missed something.
Will share any replies.