He's in there
@Seedfork 
sometimes the search function of the database can get overloaded, with some 80,000 (?) daylily cultivar names (very likely if you are using the general search instead of the daylily-specific search, too). So, especially when there is a name with a 2-letter section in it, I try to search using the daylily section:
The Daylilies Database
But, even there, you will not initially find "Ed Brown" in the prefill box, since there are just so very many names that only a tiny part of the related alphabetical search can be shown at one time:
I often find that adding the word "daylily" at the start will help the search narrow it down far enough that it will come up in the list. Ed Brown appears at the bottom of the "prefill" suggestions when "daylily" is included at the front:
And, if you just type in the search term and hit the search button, like I do (I just don't like scanning the prefill line....) then it will also show up, but the resulting list may not be entirely "alphabetical" as we know it. So, smetimes it takes searching down the returned list even past other cultivar name's we'd expect to find it nestled with.
Here's a direct link to the database page for Ed Brown, as accessed through the search function:
Daylily (Hemerocallis 'Ed Brown')
And, if the cultivar has some other unusual aspect (might have a hyphen or maybe the hybridizer used two words instead of a seller's mistaken listing of it using a one-word-contraction, or the official entry might or might not have an apostrophe in it) then I will often just use a partial spelling of the name, like "Ed Brow" to bring up more options to look through.
Hope this helps a bit ... whenever I can't seem to find a daylily cultivar, especially one registered from years past, I have the most ease in finding it when I include "daylily" in front.
