Thanks for your response!
Yes - we've begun researching the American family branch. Could you post the link for the youtube video? I cannot locate it.
Where did you get the information on the possibility of the name being French Huguenot?
We're exploring the possibility that the Reybaulds were Palatine Germans, as the name 'Reiboldt' appears in lists of Palatine families who left Germany, though I am still searching the names of the Palatines who settled in Ireland.