Who made the 1st 4 wheel riding mower?
Kevin in the late 1760's the French Army used Steam driven Tractors to Pull there Field Pieces But the OP was asking about Garden tractors Not Full size Tractors:thThumbsUWay before Speedex was tractors was called traction engines...
People started making tractors in 1889.
The first small tractor was a Froelich tractor.
Later called Waterloo Boy tractor...
Case made tractors in 1894.
Charles Hart and Charles Parr started in 1901.
Ford in 1907.
Frick started in 1853 with steam...
A Hart and Parr Tractor 1903 30 horsepower weighting 14,000 pounds #3 is the oldest surviving internal combustion engine tractor in the United States and is on display at the Smithsonian National Museum of American History in Washington D.C
In Britain, the first recorded tractor sale was the oil-burning Hornsby Ackroyd Patent Safety Oil Traction engine in 1897.