PDF January 9, 1939 Paper Letter from Counsellor, Canadian Legation, to SEC Chairman William O. Douglas on regulation of Canadian securities
PDF March 10, 1943 Paper Letter from SEC Chairman Ganson Purcell to Green Hackworth, Department of State on Canadian extradition treaty
PDF May 20, 1943 Paper Letter from SEC Chairman Ganson Purcell to Green Hackworth, Department of State on objections to Canadian extradition treaty
PDF March 15, 1945 Paper Letter from SEC Chairman Ganson Purcell to Secretary of State Edward R. Stettinius, Jr. on Canadian extradition treaty
PDF March 30, 1955 Paper Draft Confidential SEC Staff report on The Canadian Problem, Illegal Securities Offerings, 1933 -1955
