Wow! I wasn't expecting so much interest in that! Thanks for the welcomes and thumbs up and acorns! Very kind and encouraging.
Frillylily, it will be very hard to ID a daylily similar to Lady Georgia. I'm supposing it's a melon-colored self (all one color). There are truly thousands of those, named and unnamed.
I forgot to mention that another source of dual-named or unregistered-name daylilies is the "garden name". A gardener with a daylily they like but don't know the name of (it may not have one, see below) gives it a name they create. Let's say "My Pet". There's a registered 'My Pet' (Joiner, 1986) but they're unaware of it. Maybe they share the plant with friends. Now there are two different cultivars circulating under one name.
Backyard hybridizers often do this with favorite seedlings. The American Hemerocallis Society strongly discourages it, clearly for good reason, but it's human and understandable.
There are also thousands upon thousands of unnamed seedlings sold by hybridizers and commercial growers every year. These may be the source of some of those "mixed" collections sold. These are rightly unnamed. But as above, people sometimes give them names.
Sometimes new daylily collectors (naively) think that every daylily has a name, so they try to figure it out. It's not uncommon while preparing entries for a daylily show that a new collector wants to enter a daylily they don't have a name for, and walk it around the room asking others if they know what it is. I always decline to offer any possibility because if someone tells them "it looks kind of like 'My Pet'", sure enough it will be entered in the show with that name stuck on it. If the judges know 'My Pet' well, they'll recognize it's wrong and mark that on the entry tag, disqualifying it. But if not, they have to accept it as entered and judge it. If it's well grown it might even get a blue ribbon. Now it gets mis-labeled 'My Pet' in that garden, perhaps gets passed around ... an error is propagated.
My suggestion is to enjoy your NO ID for its beauty. Mentally give it a name if you'd like but keep it your secret. Maybe someday you will find what seems to be its perfect match. If so, buy it and grow it side by side with yours before deciding.
Pat