The original McCormick reaper, 1831. Courtesy of the Library of Congress, Washington, D.C. https://www.britannica.com/biography/Cyrus-McCormick McCormick Reaper
Cyrus Hall McCormick was born in 1809. He grew up on his family's 532-acre farm, "Walnut Grove", which was located north of Lexington, Virginia. As a boy, McCormick had a talent for both agriculture and inventing. At the age of 15, he invented a lightweight cradle for carting harvested grain (1824). Meanwhile, McCormick's father, Robert, was working in the farm's smithy on an invention of his own: a horse-drawn reaping machine. When Robert McCormick finally gave up on producing a working model, in the early fall of 1831, his son took over the challenge.