Columbia subject headings:
Harvard subject headings:
Essex (England)--Emigration and immigration--History.
Essex (England)--Emigration and immigration.
Great Britain--Colonies--America.
United States--History--Colonial period, ca. 1600-1775.
Princeton subject headings:
Essex (England)--Emigration and immigration--History.
Great Britain--Colonies--America.
United States--History--Colonial period, ca. 1600-1775.