Trivia: General Robert E. Lee was shown throughout the movie as wearing the three star insignia of a Colonel, rather than the three stars surrounded by a wreath as was the proper insignia for all Confederate generals. General Lee actually wore this throughout most if not all of the war, and this is accurate.
Trivia: Ted Turner can be seen saying "We owe you Texas boys a debt of gratitude ..." in the Bonnie Blue Flag scene on Side B. He is also visible throughout the scene in views of the audience. Ted Turner commissioned the movie. (00:42:30)





Answer: Yes, she did exist. Through books.google.com, I found a book "Cemeteries of Caroline County, Virginia: Private Cemeteries" by Herbert Ridgeway Collins, that confirms Jane did live, that she and Jackson were close, and that he arranged for her burial after her death.