I've confused about the word "them" in the middle of the sentence:
They know all about them Westovers in Idaho.
Could you please tell me what the meaning of "them" here is?
Does it mean "they know about the oils which are made by Westovers in Idaho"?
The full text is here:
Dad had always said he wanted to build a room the size of a cruise ship but I’d never thought he’d have the money. I looked to Mother for an explanation but it was Dad who answered. The business was a roaring success, he explained. Essential oils were popular, and Mother had the best on the market. “Our oils are so good,” he said, “we’ve started eating into the profits of the large corporate producers. They know all about them Westovers in Idaho.”
Educated by Tara Westover