Columbia subject headings:
Butler, Benjamin F. (Benjamin Franklin), 1795-1858.
Duer, John, 1782-1858.
Spencer, John C. (John Canfield), 1788-1855.
Spencer, John Canfield, 1788-1855.
Harvard subject headings:
Butler, Benjamin F. (Benjamin Franklin), 1795-1858.
Duer, John, 1782-1858.
Law reform--New York (State)
Spencer, John C. (John Canfield), 1788-1855
Princeton subject headings:
Butler, Benjamin F. (Benjamin Franklin), 1795-1858.
Duer, John, 1782-1858.
Spencer, John Canfield, 1788-1855.