Abstract: The subject of this research is the political, cultural and public activity of Vincent Massey, the first Canadian General-Governor. The object of this research is the history of the Canadian political culture through the lens of the political and public activity of this particular historical figure. The study pays attention to the various aspects of his activity during the first half of the 20th century, especially during the formation and development of the Canadian political culture, the unified Canadian nation and the achievement of the country’s full sovereignty. The author highlights the particular role and the importance of Vincent Massey in the development of the Canadian statehood.The study was carried out by applying historical research methods and through the use of original texts from Canadian archival and historiographical sources. The novelty of this research lies in its approach of using the personality factor of the above-named historical figure for the analysis and study of its influence on the history of the formation of the Canadian political culture in the second half of the 19th century on the example of the political and public activity of J. A. Macdonald, the first prime-minister of Canada.