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  1. Robert Hall McCormick (June 8, 1780 – July 4, 1846) was an American inventor who invented numerous devices including a version of the reaper which his eldest son Cyrus McCormick patented in 1834 and became the foundation of the International Harvester Company.

  2. Robert Hall McCormick invented the mechanical reaper, for which his son Cyrus later received the patent. Leander eventually developed multiple improvements to the reaper and received patents for two of them, with the remainder being patented by his brother Cyrus.

  3. Robert Hall McCormick III (1878–1963). Alderman for Chicago's 21st Ward, and worked as a secretary to the Brazilian Ambassador in Rio de Janeiro. Welcomed Guglielmo Marconi to the U.S. in 1914.

  4. Robert Hall McCormick (June 8, 1780 – July 4, 1846) was an American inventor who invented numerous devices including a version of the reaper which his eldest son Cyrus McCormick patented in 1834 and became the foundation of the International Harvester Company.

  5. Robert McCormick was more than this. Although, like his fellows, slightly schooled, he had developed a fondness for astronomy and other science's, was given to historical reading, and proved to be an inventor of no mean capacity. In his farm workshops he fashioned an ingenious hemp-brake and cleaner,

  6. Robert Hall McCormick (1780-1846), Cyrus’s father had patented a number of agricultural implements and spent 28 years working on a horse-drawn mechanical reaper but success just eluded him. In 1831 he handed the project to his son, who had already developed a variety of plough designs.

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  8. As early as the 1790s, slavery was a reality at the 450 acre site of the McCormick plantation in the Shenandoah Valley. Rockbridge County records indicate that Robert McCormick enslaved one person in 1792. By 1800, three people were enslaved by McCormick, likely including.