Portrait of Steinsaltz at approximately 27 years old.

Portrait of Marsh, Professor of Earth and Planetary Sciences, at approximately 44 years old.

Portrait of Wessel at approximately 65 years old.

Portrait of Wessel at approximately 65 years old.

Portrait of unidentified man standing in front of an icy waterway in Russia. Possibly donated by the School of Advanced International Studies (SAIS).

Portrait of Schlenger at approximately 70 years old holding papers.

Portrait of Huggins at approximately 65 years old.

Portrait of Muller at approximately 45 years old posing in front of bookcases.

Portrait of Mabus at approximately 36 years old.

Portrait of Gray at approximately 45 years old.