First, although the above map is still a work in progress, I think it's enough to add to the official page.
I wrote a more detailed history to accompany it. Most of it is a recap of information that was already written elsewhere.
Second, while Upper Virginia has a map,
Lower Virginia might just have a flag. This is my idea for the flag of Lower Virginia. Clearly it began during the Wars of Independence. The originals were covered with belligerent mottoes like LIBERTY OR DEATH and DON'T TREAD ON ME and SIC SEMPER TYRANNIS. The modern flag has removed all of that, but it still features the rattlesnake, daring all who might try to encroach on Virginia's rights and independence. The striped background also comes from the Revolution. The nine stripes represented the nine states that had declared independence from England.* Despite much early hope, the English Republicans failed to stay united after the war's end. Bermuda was reconquered; Connecticut, Rhode Island, and Plymouth actually voted to restore the monarchy; and Pennsylvania went so far as to fight alongside England in a war against Virginia in 1803-8. But the idealism of the early revolutionaries is preserved in this flag.
* The nine states originally were: Virginia, Pennsylvania, Christiana, Connecticut, Rhode Island, Plymouth, Massachusetts Bay, New Hampshire, and Bermuda. Bermuda had been a Virginian dependency, but it had a separate assembly that declared independence on its own. As the war died down and English forces remained in Bermuda, Virginia began to emphasize that Bermuda was part of its own territory rather than a separate entity. However, by then Vermont was a recognized member of the group of revolutionary states, so the number could remain at nine.