Columbia subject headings:
Harvard subject headings:
Missionaries--Africa--Biography
Missionaries--Italy--Biography
Pharim Den, Daniele Sorur, 1860-1900.
Race relations--Religious aspects--Christianity--Africa.
Slavery and the church--Africa--History.
Slavery--Africa--History--19th century.
Princeton subject headings:
Comboni Missionaries--Biography.
Missionaries--South Sudan--Biography.
Sorur Pharim Den, Daniel, approximately 1860-1900.