Most of the correspondence was written during the Peace Conference period. It is mainly of several routine kinds: requests for employment, covering letters (with most enclosures missing), staff memoranda about administrative matters, summaries of documents, and exchanges of courtesies. There are also letters and memoranda on policy questions by Tasker Bliss (Mezes' draft "Agreement for an Association of Nations"), B. H. Carroll (Fiume), Stanley K. Hornbeck (China), Douglas W. Johnson (Fiume), R. H. Lord (Rumania), Charles McCarthy (Ireland), Harold Nicolson (Greece), Robert E. Speer (the Assyrians), W. L. Westermann (Turkey), and Abraham D. Yuseff (the Assyrians). A 1912 letter by Franklin K. Lane gives his impression of Colonel House. Mezes' letters to George S. Viereck in 1931 recall the last eighteen months of Wilson's second term.
The Sidney E. Mezes Papers are divided into two series: (I) General Correspondence. (1 box) [arranged alphabetically by
correspondent] and (II) Miscellaneous Memoranda and Notes (1919). (1 box) [arranged alphabetically by topic].