Columbia subject headings:
Egypt--History--19th century.
Noncitizens--Sudan--Biography.
Sudan--Description and travel--19th century.
Sudan--History--1821-1881.
Sudan--History--19th century.
Harvard subject headings:
Princeton subject headings:
Biographies.
Egypt--History--19th century.
Noncitizens--Sudan--Biography.
Sudan--Description and travel--19th century.
Sudan--History--1821-1881.
Sudan--History--19th century.