Post Gettysburg — A Universe from the Mind of Uther Pendragon

In July 1863, Lee's Army of Northern Virginia reeled away from Gettysgurg after suffering 36% casualties. Meade's Army of the Potomac limped after them after suffering 26% casualties. Lee managed to slip away over the swollen Potomac, but what would have happened if he had not? This is the alternative history of a somewhat shorter Civil War. And how some individual lives would have been affected.