Columbia subject headings:
Beijing (China)--History--Siege, 1900.
Gamewell, Mary Porter, 1848-1906.
Missionaries--China--Biography.
Missionaries--United States--Biography.
Harvard subject headings:
Beijing (China)--History--Siege, 1900.
Gamewell, Mary Porter, 1848-1906.
Missionaries--China--Biography
Missionaries--United States--Biography
Women missionaries--China--Biography.
Princeton subject headings: