James
Mercer (February 26, 1736 – October 31, 1793), also known as William
James Mercer, was an American soldier, jurist and political figure.
http://en.wikipedia.org/wiki/James_Mercer_%28jurist%29
(He not only served Fredericksburg Lodge No. 4 as Worshipful Master in
1777, but he went on to become the second Grand Master of Masons in
Virginia from 1784 to 1786)
http://en.wikipedia.org/wiki/James_Mercer_%28jurist%29