Deere & Company (brand name John Deere) is an American corporation that manufactures agricultural, construction, and forestry machinery, diesel engines, and lawn care equipment. The company began in 1837, when Vermont native John Deere moved to Illinois to open a shop in Grand Detour, which allowed him to serve as a general repairman in the village, as well as a manufacturer of small tools such as pitchforks and shovels. In 1912 the company began an expansion into the tractor business; its first combine harvester was produced in 1927.
- While out riding around Capharnaum County, Lewis, uncle Jonathan, and Mrs. Zimmermann, see, among other things, green John Deere tractors parked in deep muddy ruts (The House with a Clock in its Walls, 94).
- Traveling to Petoskey, Michigan, Rose Rita and Mrs. Zimmermann pass fields where farm machines were working, including some built by John Deere (The Letter, the Witch, and the Ring, 28).