The papers include pre-war documents and correspondence while Ruth lived in Amsterdam; material documenting life in Westerbork and Bergen Belsen camps including diary and plan of Westerbork; postwar correspondence from her father, who treated her as head of the family in his absence and after her mother's death; also papers of the Klemens family.

In addition readers need to book a reading room terminal to view digital content including video interviews with Ruth and Paul Klemens, c1980s