This series contains John Diefenbaker’s correspondence while Prime Minister, both incoming and outgoing, which was filed by his office staff. Together with the correspondence in MG 01/VI PMO Numbered Correspondence, it comprises the whole of Diefenbaker’s correspondence during the period, excluding that with his family. It contains correspondence with members of his cabinet, the Civil Service, other politicians, foreign leaders, personal friends and advisors, and the general public, all arranged in the same series of subject files. The topics covered include almost all the political and social questions of the period.