Papers of Prof Peter Guy Winch, 1936-1996, including professional correspondence; teaching notes; lecture notes and handouts; draft and proofs of articles by Winch; proof copy of The Idea of Social Science and its Relation to Philosophy, 2nd edition; papers relating to the University of Swansea including minutes of departmental meetings, 1984; papers relating to Winch's time at King's College London including papers relating to publication of Winch's Ethics and Action, 1971-1972 and Winch's inaugural lecture for the Chair of Philosophy, 1968; papers, lecture notes, correspondence, handouts and student work relating to teaching at University of Illinois, 1990-1996 and research notes on topics including social science, ethics, Ludwig Wittgenstein, logic, Baruch Spinoza, epistemology and political philosophy.

Papers of John Watkins, from the 1940s onwards consisting of an alphabetical series of correspondence files, mainly with other philosophers including Karl Popper, Imre Lakatos and Paul Feyerabend.

Papers, 1946-1994, relating to philosophy and Lloyd's academic career and publications, including letters relating to publishing contracts for Form and universal in Aristotle (Liverpool University School of Classics, 1981), and The anatomy of neoplatonism (Clarendon, Oxford, 1990). Lecture notes, [1960-1970], on various philosophical subjects, including Plato, and the History of Philosophy. Papers, [1985-1990], relating to Lloyd's writings, mainly on Greek philosophy, and including manuscript drafts and proofs of The anatomy of neoplatonism.