I feel really bad because I lost my first daylily to winter this year. Not the first one I bought, but it was the first time I lost one. It was an older one, Jerry Pate Williams, but I sure did love it! But, it was old and cheap when I bought it, unlike some of the ones that all of you have lost.
Hopefully you can find replacements. I'll pick up another Jerry Pate Williams the next time I'm in Utah. The little nursery there has always had it, and I think I only paid $5 for it. So, not a major loss.