Correspondence and writings primarily of Otto Fenichel following his immigration to the U.S. in 1938. Correspondence relates chiefly to the American Psychoanalytic Association and to various other psychoanalytic groups, especially in the Middle West and California. Includes copies of his Rundbriefe, circular letters sent to a small group of associates (1934-1945). Correspondents include Ernest Jones, Anna Maenchen, Karl A. Menninger, Theodor Reik, and Ernst Simmel.