This series comprises Eugénie Sellers Strong's personal papers, including her correspondence, records relating to the administration and the Library of the BSR, catalogues of private collections and libraries (by ES and others), records relating to ES's time as Librarian to the Dukes of Devonshire (1904-1909), working papers, lectures, research notes, publications, works-in-progress, and a number of unpublished works and translations by ES.

The correspondence in this series is particularly rich and varied, offering a window on Strong's social worlds and the various cultural and social networks of which she was an active part even into her last years. The range of featured correspondents include politicians, diplomats, art historians, artists, archaeologists (including an extensive range of German classical archaeologists), philologists, literary scholars, writers, journalists, cardinals and other members of the Roman Catholic clergy, curators, museum directors, dealers in art and antiquities, teachers, academics, and many others. A separate list of notable and/or recurrent correspondents, with corresponding archive reference numbers, is available on request.

Much of the material contained in ES-PP-02, the sub-series relating to the BSR Library and the School's administration more broadly, speaks to Strong's continued involvement in (and arguably her influence on) matters relating to the running of the School and the development of the Library as a scholarly resource, long after her dismissal in 1925. Additionally, this sub-series contains many records relating to the early establishment and cultivation of the Library collection, several pre-histories of the School penned by Strong on the occasion of AGMs and meetings of the Faculty of Archeology, History and Letters (FAHL). This material provides vital historical context for tracing the BSR's early institutional history.