Columbia subject headings:
Connecticut River Valley--Commerce--History--Sources.
Connecticut River Valley--History--Sources.
Industries--Connecticut River Valley--History--Sources.
Industries--Massachusetts--Springfield Region--History--Sources.
Pynchon, John, 1621-1703.
Springfield Region (Mass.)--Commerce--History--Sources.
Springfield Region (Mass.)--History--Sources.
Harvard subject headings:
Connecticut River Valley--Commerce--History--Sources.
Connecticut River Valley--History--Sources.
Connecticut--History--Colonial period, ca. 1600-1775--Sources.
Industries--Connecticut River Valley--History--Sources.
Industries--Massachusetts--Springfield Region--History--Sources.
Massachusetts--History--Colonial period, ca. 1600-1775--Sources.
Pynchon, John, 1621-1703.
Springfield Region (Mass.)--Commerce--History--Sources.
Springfield Region (Mass.)--History--Sources.
Princeton subject headings:
Connecticut River Valley--Commerce--History--Sources.
Connecticut River Valley--History--Sources.
Pynchon, John, 1621-1703.
Springfield Region (Mass.)--Commerce--History--Sources.
Springfield Region (Mass.)--History--Sources.