Brown, L. Carson (Julio 1969). Burpee, Lawrence Johnstone (ed.)."Kirkland Lake: 50 Golden Years". Canadian Geographical Journal. 79 (1). Royal Canadian Geographical Society: 14. Consultado 2023-06-05. "Kerr - Addison Gold Mines, at Virginiatown, is the biggest gold producer in Canada, and in North America exceeded only by the Homestake Mine."
Brown, L. Carson (Julio 1969). Burpee, Lawrence Johnstone (ed.)."Kirkland Lake: 50 Golden Years". Canadian Geographical Journal. 79 (1). Royal Canadian Geographical Society: 14. Consultado 2023-06-05. "Kerr - Addison Gold Mines, at Virginiatown, is the biggest gold producer in Canada, and in North America exceeded only by the Homestake Mine."