Columbia subject headings:
Smallpox--Mortality--Great Britain--History--18th century.
Smallpox--Vaccination--Great Britain--History--18th century.
Harvard subject headings:
Smallpox--Great Britain--Mortality--History--18th century.
Smallpox--Mortality--Great Britain--History--18th century.
Smallpox--Vaccination--Great Britain--History--18th century.
Princeton subject headings:
Smallpox--Great Britain--Mortality--History--18th century.
Smallpox--Great Britain--Vaccination--History--18th century.