If you're looking for the right facts get them straight from the horse's mouth at Deere & Co.'s website:
www.deere.com/en_US/compinfo/history/index.html
He maried his dead wife's sister
John Deere's parents were William and Sarah Deere.
JOHN DEERe's parents were William and Sarah Deere.
john deere
Most John Deere products are made by.... John Deere.
they take large dumps
Proper names are the same in spanish..."John Deere" is John Deere.
john deere
no
John Deere does have brothers.
John Deere's population is 55,700.
As in the agricultural machines: John Deere