The Harvester World: Volume 9, number 2, February 1918 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

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The Harvester World: Volume 19, number 9, September 1928 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

The Harvester World: Volume 41, number 6-7, June-July 1950 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

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The Harvester World: Volume 9, number 12, December 1918 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

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The Harvester World: Volume 9, number 6, June 1918 - McCormick - International Harvester Collection - Wisconsin Historical Society Online Collections

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