[16] Ibid., pp. 404-419. [17] "Petition of John Mercer" (1748), (Ludwell papers, Virginia Historical Society), _VHM_ (Richmond, 1898), vol. 5, pp. 137-138. [18] _Calendar of Virginia State Papers and Other Manuscdit. William P. Palmer, M.D. (Richmond, 1875), vol. 1, pp. 137-138. [19] _JHB, 1742-1747; 1748-1749_ (Richmond, 1909), pp. 285-286.