Maurice, I got an answer back from Richard Norris. He said he's not seen that in seeds he's collected from Sharon's Delight. So I'll plant them and see what happens. The vendor told me he'll refund my money if they don't grow so there's nothing to loose by trying.
I have to say though I checked out the link that Frillylily posted and some of those whitish morning glory seeds sure do look a lot like what I have!