Simon Drock is listed in the 1790 census for Newport, NH as Head of Household with 4 other free persons.
For further information on Simon Drock see these two wonderful websites:
The Lost Family by Daryl Y. (Hooper) Holmes
Drock Descendants by Donald W.L. Roddy This site has a FREE download of the Drock Descendants (51 pages - 9.11MB)