to the iris forum felicia lynn.
sorry, i haven't heard of the hybridizer before. but, i don't know too many except those that are on the west coast, are currently hybridizing, or have popular new irises.
however, if you know where slade has/had his gardens you might find out if there's an iris society, and write to inquire if anyone in that area grows 'felicia lynn'? it looks as though he may have been from the kentucky area?
there maybe others on this forum more knowledgeable than i, who might be able to help?