@beckygardener
Kaskel did not register any daylilies after 2004 (a few of his seedlings have been registered by others since then). There are 77 daylilies registered under his name. There may be something about him in the back issues of the Daylily Journal. I know that he made a few posts to the AHS email robin (which still exists) in the late 90s and early 2000s so at least some of his posts would be in their archives. You do have to be a member of the AHS to be a member of the email robin and access the robin archives. He was breeding for rust resistant daylilies. He only hybridized tetraploids.
He was in the process of moving from paper catalogues to online selling in the early 2000s so you can find some of the material from his website at the Wayback Machine. For example at,
https://web.archive.org/web/20...
