It seems strange that a French colonist would be still living and going Unlisted (see tags above). I still haven't got a clue who this very notable person might be.
If this person is living, in my opinion there is not much point in discussing him. If not, why not add him?
I'm not sure I understand the purpose of the question. If you plan to add a pre-1700 notable you should definitely communicate with the appropriate project, but without knowing who we are talking about, it will be difficult.