Fonds comprises Ronald St. John Macdonald's records regarding his personal, academic, and professional activities as a jurist, judge, and professor. Records include those related to Macdonald's involvement with Osgoode Hall, University of Western Ontario, University of Toronto, Dalhousie University, the European Court of Human Rights, the Hague, Peking University, World Academy of Arts and Science, Canadian Council of International Law, United Nations, Institute of International Law, African Society of International Law, British Institute of International Law, Canadian Institute of International Law, International Law Association, and others. Records types include correspondence; meeting minutes and agendas; research materials; photographs; newsletters; newspaper clippings; manuscripts; and off-prints.

File contains research and program notes pertaining to Hector Berlioz. The file includes several programs collected by Anthony Pugh from performances by the Liverpool Philharmonic Orchestra and BBC Symphony, as well as a program from a concert by the Atlantic Symphony Orchestra with program notes, presumably written by Pugh. The file also includes drafts of Pugh's program notes, a newspaper clipping on a performance of Berlioz by the Montreal Symphony Orchestra, a postcard from "Kathy" to Pugh featuring a picture of Berlioz, and correspondence from Pugh to Professor Tom Lawrenson at the University of Lancaster about Berlioz's opera "Béatrice et Bénédict."