No, nothing. Still looking. It looks like the consensus online -- if you buy that as "proof" -- is that she was Elizabeth, I could only find one reference to "Penelope" when I checked this morning. On the other hand, no one -- myself included -- seems to have any documentation on Elizabeth other than the reference in Newman's "Anne Arundel Gentry" which is good but hardly error-free. I'd love to find some reference to her in primary records, but so far, nothing.
BTW sorry it took me so long to respond to your post. I don't think I ever got the alert that you'd posted -- or, maybe, I accidentally deleted it. In any case, my apologies, I wasn't meaning to ignore you.
cheers,
Gordon