The final coat of arms found inside (well, okay, and outside, too, as I’ll explain below) the Jamestown church are those of Captain John Smith. Yes, that Captain John Smith. The one who was saved from execution by Pocahontas.
He is especially remembered for his role in helping to establish Jamestown. He was a leader of the Virginia Colony between September 1608 and August 1609, and led an exploration along the rivers of Virginia and the Chesapeake Bay. He explored the coasts of New England in 1614, and died in England in 1631 at the age of 51.
The crest is: An ostrich holding in its beak a horseshoe. Motto: Vincere est vivere (to conquer is to live, if I’m reading it correctly; it doesn’t appear in my copy of Fairbairn’s Crests).
* The sheer number of coats of arms borne by various Smith’s listed in Burke gives the lie to the all of those bucket shops who will happily sell you _the_ “Smith coat of arms”.
** Of course, there are a lot of stories that purport to tell the origin of various coats of arms. Unfortunately, most of them do not hold up under scrutiny.