Thanks so much. Mine certainly looks like Sugar Bread.
Yesterday I was browsing through some daylily web sites, and came across a picture of the other one on the Tranquil Lake Nursery site. It's called Peter Pan. I've taken photos of this both morning and night, and it always looks the same. Mine are 28 - 32 inches tall, with a 4-inch bloom. A friend gave it to me several years ago, but she didn't know what it was either. The Sugar Bread I've had for about 30 years, but have just very recently (past 3 years) gotten interested in daylilies. There are still about 10 of the hundred or so I have that I don't know.
Thanks again.