I've been away from this thread since the initial few posts.
Regarding the peach, I was going to add my vote for Serena Sunburst, but I hesitated because I didn't think it was in the retail nursery trade, whereas Spanish Glow could very well be. Since Serena Sunburst is available in your area, I'm almost certain that's what you have. I've grown it for 25 years, and never get tired of seeing it bloom. It's been a very good parent for me, imparting sunfastness, substance and reliable opening to its kids.
Bernice Marshall registered Serena Sunburst in 1982, but the only written record I can find is from its listing in the 1989 Benz catalog. John Benz both featured and introduced several Marshall varieties in his catalogs. I'm attaching a scan to this post. (Click on the image to open it fully.) Pay no attention to the 6" flower size in his catalog description. While under perfect conditions it's possible to see the first bloom on a scape approach that size, "6-inch flower" is a term used more often than not to denote what size category a flower belongs in. In 1989, and even today, a 6 inch flower is usually closer to 5 inches in the garden. For reference, Bernice Marshall registered Serena Sunburst as a 4.37" flower.
Regarding photography, there are a lot of subtleties which serve to distinguish one daylily from many others of similar color. General form is vital, however smoothness of petal texture and style of ruffling are two important ones, but the picture has to be pretty good to help in that regard. Morning is usually the best time to get a picture, unless the flower is one which has trouble opening early. Photos taken under mid-day sun can suffer from glare, excessive contrast and incorrect color due to the exposure meter keying off the bright background. In this case, light shading works wonders. My favorite is an 18-24 inch hoop with white "frosted" plastic (shopping bags) or gray window screen stretched over it. It's just enough to take the edge off of the sun. Some flowers will recover from sun damage and desiccation in the evening, but more often than not, color and many distinguishing details are lost by then.
There are many possibilities for your unknown white, I can only say that it doesn't look at all like Joan Senior.
And about the dog, the only way to keep it out of your beds is an impenetrable barrier. Here's the way to look at many of the common solutions to discouraging pests. Imagine something that you wanted very badly. Would the folk-remedy you're considering keep you out? I used to have a dog which was not only fascinated with daylily scapes and fluttering hybridizing tags, but apparently suffered from separation anxiety and something resembling OCD. A 4-foot high hog wire enclosure was the only thing that worked.
NikkiHays!
