I was just wondering if there was anything interesting that might give more context to the way his life is portrayed.
As someone who has not seen the show, but has done some research, I can think of a few.
Angelica was already married when she met Alexander
Jefferson wouldn't have used the example of Lafayette to support the French Revolution, because by that time, Lafayette was actually against it
These are mostly smaller details, and the play gets a lot right.
Edit: Removed an incorrect point.