Internet, alt.obituaries consulté le 23-09-2005
Information trouvée : David Everett Mark, a former U.S. ambassador to Burundi and deputy assistant secretary
of state who after retiring went to work as a professor and a New York City tour guide,
has died 2005-09 ; Mark, a graduate of Columbia University School of Law, was fluent
in Russian, German and French and conversant in four other languages.