Harry Ferguson's experience selling tractors in Ireland and learning the needs of farmers led to his invention of the three-point hitch and his Ferguson Black tractor, which was built to demonstrate the hitch and thus triggered a short-lived partnership with David Brown, to build the Ferguson-Brown tractor in 1936.

In 1938 Ferguson struck a deal with Henry Ford to produce tractors with his three-point–hitch, but this deal ended acrimoniously in 1946 following a dispute over Ford's use of Ferguson’s patents. In the meantime, Ferguson began working with Standard Motor Company and produced his own tractors, which was then acquired by Massy-Harris in 1953. Today the Massey-Ferguson (owned by AGCO) is one of the world’s leading brands.