The Khuzestan Development Project (Iran) series contains the records pertaining to D's development work in the Khuzestan Region of Iran from 1956 to 1979, as well as a small number of projects that extended into the rest of the country. The records predominately document D's construction of the Dez Dam and related work with irrigation and agriculture, and also include correspondence files and other records pertaining to the management of the region's development. Please see the subseries descriptions in the contents list for additional information about individual subseries.

Series 7: Publications About or Relating to David E. Lilienthal includes magazine or professional journal articles about Lilienthal, the organizations he worked for, or subject matter related to his professional career (e.g., atomic energy).

This series consists of miscellaneous papers, ranging in date from the late-13th to the mid-20th century, amassed primarily by John Ross Delafield reflecting his interest in history, particularly his interest in collecting family history family-related memorabilia. Similar to a subject file, the series includes papers created by as well as research and genealogical materials about families related to the Delafields and various other persons (particularly political figures) as well as miscellaneous materials documenting various places and subjects. There are as little as one item or up to several folders associated with each name and topic represented; and while a good number of items are original, a significant amount are copies of original documents. Found throughout this series is the correspondence of John Ross Delafield relating to his research and collecting efforts.

Diverse notes and memoranda slips, including reading notes, library request slips, bibliographic excerpts and memoranda, and memoranda books. Extensive notes on history, philosophy and theology, especially the works of Gottfried Wilhelm von Leibniz (primary and secondary sources). Largely in Gabelsberger shorthand.

The Photographs and Audio-Visual Series consists of photographs, microfilm, and sound recordings gathered by the editorial staff of the Papers of Woodrow Wilson. The photographs provide a visual complement to the papers gathered in this collection, and many were published throughout the 69 volumes of Wilson papers. The microfilm consists of reels ordered from repositories throughout the country and around the world, containing correspondence to and from Wilson, as well as reports from his administration, diaries, newspapers, and papers of individuals related to Wilson. The audio contains recordings of radio programs and seminars on the topic of Wilson, as well as some of his speeches.

The Russell papers contain drafts and carbon copies of some 13,000 letters which Russell wrote over the years 1908 - 1950 (approx.). These letters are arranged alphabetically by correspondent and then chronologically for each correspondent. Correspondents include not only individuals, but businesses, scientific societies, schools and divisions of Princeton University. Letters to individuals filed under corporate entries may be located by consulting the file of white cards in the manuscripts catalogue. For example, looking in the cross-reference file under the name of R.A. Gregory, one finds a card which reads as follows:

Series 8: March 2006 Addition (1993-2005) contains materials related to AAIA sacred lands protection, repatriation, the Medicine Wheel Coalition, and scholarships, as well as association administrative business such as insurance and audit materials.

This series includes some 10,000 letters, telegrams, postcards and other communications received by Russell and his immediate associates over the years 1897 to 1956. The letters are arranged alphabetically by correspondent and then chronologically for each correspondent, with corporate entries and cross reference cards as described for the outgoing correspondence. Russell's colleagues often sought his opinion of their work, and some 175 manuscripts are interspersed with the incoming letters. Folders of correspondence which contain one or more manuscripts are labeled on the right side "Manuscript enclosed with correspondence". At the same time, there is a 3 x 5 yellow card for each manuscript which lists its author, title, length, date, and location. The yellow cards are arranged alphabetically by author in a file stored in the manuscripts catalogue.