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.

Series contains published and manuscript copies of Kenneth Leslie's writing, as well as artwork, music and research notes created and compiled by Leslie.

File contains an undated and incomplete self-portrait, drawn and painted by Kenneth Leslie, likely from the late-1930s. Leslie's head has been fully painted while the rest of his body and the background remain unpainted, a penciled drawing. On the verso of the painting, Leslie has written the following: "This is a self-portrait of / myself when in misery from / the loss of my family. / Ken". It relates to the collapse of his first marriage, wherein his first wife, Elizabeth Moir, left Leslie, taking their children with her.

File contains a watercolour painted and signed by Kenneth Leslie, presumably in the late-1930s. The painting depicts a rural setting -- quite likely of somewhere in Pictou County -- with a brown fence in the fore-ground, a narrow peninsula stretching into a river, with low hills in the distance.