Columbia subject headings:
France--History--Reign of Terror, 1793-1794.
France--History--Revolution, 1789-1799--Prisoners and prisons.
Prisoners--France--Correspondence.
Harvard subject headings:
France--History--Reign of Terror, 1793-1794.
France--History--Revolution, 1789-1799--Prisoners and prisons.
Prisoners--France--Correspondence.
Princeton subject headings:
France--History--Revolution, 1789-1799--Prisoners and prisons--History--Sources.
Prisons--France--History--Sources.