Quote 1
George: He's a little man. That's what happens to suckers, you know. It's good I went to him in time – another year there'd be nothing left but his smell. (2.225)
This is George's introduction to the topic of "Ann, there's no way in hell you are marrying into this family." George includes Chris in his condemnation of Joe.
Quote 2
George: I saw your factory on the way from the station. It looks like General Motors. (2.400)
For George, the successful factory is a symbol of the injustice Joe inflicted on his father. Joe gets rich; Steve gets imprisoned.
Quote 3
George: The court didn't know your father! But you know him. You know in your heart Joe did it. (2.256)
George doesn't believe the court carried out justice. So he's trying to carry out a little bit here by taking Ann away from Chris.
Quote 4
George: He's like that now. He'd like to take every man who made money in the war and put him up against a wall. (2.417)
Steve has gotten a lot more "eye for an eye" since he was imprisoned.
Quote 5
George: Oh Chris, you're a liar to yourself! (2.275)
George believed Joe because Chris believed him. He feels doubly betrayed now that Chris is taking Ann without acknowledging his father's crime.
Quote 6
George: [to Ann] He simply told your father to kill pilots, and covered himself in bed! (2.485)
George seems to react more strongly to the betrayal of his father than to the original crime of shipping bad parts.
Quote 7
George: You're not going to marry him.
Ann: Why am I not going to marry him?
George: Because his father destroyed your family. (2.233-235)
In comparison to the friendly, circuitous way that Chris and Joe approach things, George a straight shooter.
Quote 8
George: And my father, that frightened mouse who'd never buy a shirt without somebody along – that man would dare do such a thing on his own? (2.273)
George believes his father because he knows the characters of the two men involved. Joe's a bull, and Steve's a mouse. Steve never would have made a huge decision on his own.