[spoiler]In 1897, when Kitty goes to the Old house and sees the portrait of Josette, it says Boswell 1797....we NEVER saw the aritist's name on the portrait before[/spoiler] and we never do see it there again afterwards.
I have no idea why they kept changing the year from 1795 to 1796 or 1797. Then again that's the LEAST of some of the show's problems with inconsincities.