Columbia subject headings:
Essex County (Mass.)--Description and travel.
Whittier, John Greenleaf, 1807-1892.
Harvard subject headings:
Essex County (Mass.)--Description and travel.
Whittier, John Greenleaf, 1807-1892.
Princeton subject headings:
Essex County (Mass.)--Description and travel.
Whittier, John Greenleaf, 1807-1892--Homes and haunts--Massachusetts--Essex County.