I am researching the Marquis/Marcus family. In the book the Proceedings of the Clarke County Historical Association, pages 6/7, I located the following:
Another soldier who served throughout the French and Indian Wars and who attained the rank of Major was Marquis Calmes, a rench Huguenot. He was among the Huguenots who came to Virginia and settled on the james. having had experience in the planting and cultivation of vineyards, he was employed by NathanielB urwell to experiment with the dulture of grapes on B urwell's lands in Frederick County. Calmes was accompanied by two uncles, brothers to his mother, William and James Marquis. it was on the land of Mr. Burwell that Calmes plantedthe first vineyard in the Shenandoah Valley. The place on which he lived and experimented in the raising of grapes is still known as the "Vineyard". After his arrival in Clarke County, he received a grant from Lord Fairfax; this patent is known as Calmes Neck. Marquis Calmes was one of the justices that constituted the first court in Frederick County.