William Buccleigh “Buck” MacKenzie

While aboard the Glorianna, Roger encounters Morag MacKenzie and realizes she’s his four-times-great grandmother and her son his three-times-great grandfather. He protects them from the Captain: Stephen Bonnet.

While coming back from warning Murtagh about Governor Tryon’s intentions during the Battle of Alamance, Roger comes across Morag MacKenzie. He tries to warn her but is confronted by her husband (Roger’s 4x great grandfather) Buck MacKenzie who is also the son of Geillis Duncan and Dougal MacKenzie. Buck beats and ties up Roger, leaving him to be thought a Regulator.

Geillis is a time traveler. Could Buck be a time traveler too?

Source: The Ballad of Roger Mac, Down the Rabbit Hole