Much research was done at Northwestern University Library's Africana Collection. Additionally, the following books were consulted.
Sufferings In Africa James Riley Clarkson N. Potter NY 1965 (originally published in 1817)
Skeletons On The Sahara Dean King Little, Brown & Co NY 2004
Harem: The World Behind The Veil Abbeville Press NY 1989
The Fight Against Slavery T.Brady W.W. Norton & Co 1977
The Prisoner of Algiers H.G. Barnby Oxford U. Press London 1966
In Barbary E. Alexander Powell The Century Co NY 1926
The Sultans Noel Barber Simon & Schuster NY 1973
The Strong Brown God (the Niger River) Sanche de Gramont Houghton Mifflin Co NY 1976
In The Imperial Shadow M. Saghaphi Doubleday Doran NY 1932
Armies In The Sand John Sabini Thomas & Hudson London 1981
Tents T. Faegre Anchor Press NY 1979
The Sahara Time-Life Books NY 1975
African Kingdoms Time-Life Books NY 1966
A History of Africa J. D. Fage A. A. Knopf NY 1979
Atlantic Islands T. Bentley Duncan Univ. of Chicago Press 1972
The Burton Holmes Lectures McClure Phillips &Co NY 1901
Azalai John Skolle Harper & Bros. 1965
In Morocco F. Mellon Wilcox Harcourt Brace Jovanovich NY 1971
Africa /Before They Came William Morrow & Co NY 1965
Pavilions Of The Heart Lesley Blanch G. P. Putnam & Sons 1974
The Sultan / Hamid II Joan Haslip Holt Rinehart & Winston 1958
The Last Nomad W. Thesiger E. P. Dutton NY 1980
Africa Then N. Monti Alfred A. Knopf NY 1987
Arabia Deserta Chas. M. Doughty Bloomsbury Pub. London 1989
The World of Delacroix Time-Life Library NY 1966
The World of Matisse Time-Life Library NY 1969
Arabia Reborn Geo. Kheirallah Univ. of New Mexico Press 1952
... and others