I apologize for taking so long to get back, but as you suggest the web page is not overly active and I check it very infrequently (and sometimes even when I do I am not in the mood to get out my files and forge a response.) I can only hope that your are still actively researching.
We share a common ancestry down through Lt. John Contee (1794-1839). I, however, am descended from his son Charles, born to his second wife Anna Louisa Snowden; while if I understand correctly, you are descended from his son Capt. John, born to his first wife, Elizabeth Ducket. If this is correct I believe this makes us distant cousins. Greetings.
Have you had any success locating Pleasant Prospect and “The Valley”? I have made some efforts in these regards and would be glad to share my info if you are still active and respond to this posting.