An Englishwoman's twenty-five years in tropical Africa: being the biography of Gwen Elen Lewis, missionary to the Cameroons and the Congo, by George Hawker

http://www.archive.org/details/anenglishwomanst00hawkuoft

A modern pioneer in Korea the life story of Henry G. Appenzeller

http://www.archive.org/details/amodernpioneerin00grifuoft

Bolenge : a story of gospel triumphs on the Congo by Eva May Dye

http://www.archive.org/details/bolengeastoryofg00dyeeuoft

African missionary heroes and heroines / by H.K.W. Kumm.

http://www.archive.org/details/africanmissionar00kummuoft