See earlier posts about Camilla Seabrook (Dorsey), a granddaughter of Nicholas Brown Seabrook. Camilla Seabrook and Washington Dorsey were my g-g-grandparents. I understand that Nicholas Brown Seabrook and his wife, Mary Duchess or Dutchess, lived in New York City. Later generations lived in New Jersey, and then Virginia. Camilla Seabrook lived in Rockbridge County, VA, and moved to NC following her marriage to Washingon Dorsey. Hope this helps a little. I found the familysearch site very helpful in tracing this Seabrook line, btw. Good luck with your research.