The Archive of the United Kingdom National Committee of Comparative Law contains the Constitution of the UKNCCL, 1960, 1971; minutes and papers of Council, 1969-1989; correspondence and papers of joint honorary secretaries, 1965-1973; papers of UKNCCL colloquia, 1970-1971.

Papers of Sir Otto Kahn-Freund, [1940-1979], mainly relating to his work in the field of legal science, and comprising extensive working papers for publications and lectures, as well as correspondence with colleagues and friends.