Darwin only cataloged 18 breeds of chicken back in the...1800s was it? So we don't have too many to choose from.
If the Polynesians came first, it was probably some type of Jungle Fowl.
If the Europeans came first, it was likely some kind of mutt barnyard chicken. I don't think my ancestors paid as much attention to breed purity as we do now.
A breed believed to be very genetically similar to dorking were the first to be brought over from England on the Mayflower by the pilgrims. Dominiques were developed here, not brought over.