How we cite our quotes: Citations follow this format: (Act.Scene.Line). Every time a character talks counts as one line, even if what they say turns into a long monologue.
Quote #1
EDMUND
Harker will think you're no gentleman for harboring a tenant who isn't humble in the presence of a king of America.
TYRONE
Nevermind the Socialist gabble. (1.1.58-59)
James doesn't want to look rich, but he certainly doesn't want to look poor. While he laughs at Edmund's joke at Harker's expense, he's upset that Harker might think him low-class for having an impoverished, rude tenant. James also doesn't want to hear Edmund's Socialist rhetoric. In other words, while he resents Harker's airs, James doesn't want to be a part of any revolution that would hurt the rich folk.
Quote #2
MARY
The Chatfields and people like them stand for something. I mean they have decent, presentable homes they don't have to be ashamed of. They have friends who entertain them and whom they entertain. They're not cut off from everyone. Not that I want anything to do with them. I've always hated this town and everyone in it. (1.1.192)
Here we can see that the Tyrones aren't the richest people in the neighborhood (they don't have a Mercedes like the Chatfields), and we begin to see the consequences of their social class limbo. Basically, since they're not poor, they don't associate with the lower class, and since James doesn't want to seem like a rich fat cat, they don't associate with the rich people in town. Thus, the Tyrones don't have a class to fit into, and it's part of the reason why Mary's so lonely. What's more, Mary herself seems conflicted about whether or not she wants to be a part of the rich summer folk social group.
Quote #3
MARY
I've never felt it was my home. It was wrong from the start. Everything was done in the cheapest way. Your father would never spend the money to make it right. It's just as well we haven't any friends here. I'd be ashamed to have them step in the door. (1.1.194)
Again, Mary shows some resentment that James has made them look like poor people to the rest of the town. The "home" sentence is particularly important, because we're reminded that Mary hasn't had a place to call home since she was a child.