One thing another character says about Mr. Jones.

Major:

You, Boxer, the very day that those great muscles of yours lose their power, Jones will sell you to the knacker, who will cut your throat and boil you down for the foxhounds. As for the dogs, when they grow old and toothless, Jones ties a brick round their necks and drowns them in the nearest pond. (Chapter One)

Animals:

Some of the animals talked of the duty of loyalty to Mr. Jones, whom they referred to as ‘Master,’ or made elementary remarks such as ‘Mr. Jones feeds us. If he were gone, we should starve to death.’ (Chapter Two)

Snowball:

Do you know what would happen if we pigs failed in our duty? Jones would come back! Yes, Jones would come back! Surely, comrades,’ cried Squealer almost pleadingly, skipping from side to side and whisking his tail, ‘surely there is no one among you who wants to see Jones come back?’ (Chapter Three)