Answer:
The first guy I choose is the man in the midfamily. He has black hat on and has a couple of boxes that look like suitcases lying before him. I selected him since in the photo, he's the first thing my eyes were drawn to. He is the one with the most liability. He was most likely a farmer, who decided to leave because of the Dust Bowl during The Great Depression. The Dust Bowl made tending to his farm very difficult for him and he just couldn't make much money from a farm that didn't grow, so he brought his family in which either farming was better and easier and/or he could find a job that would pay him enough money to support his family.
The second person I picked is the little boy in the cowboy hat, standing right next to the first guy I selected. The little boy has a jacket on a button and seems to have blonde hair. He looks toward the two women and the baby directly across from him. The stock market probably had a lot to do with why they had to move him and his family. The problem probably had reached a point where his family could no longer handle it, so they moved to help him. He certainly does not have an idea why they are going. He most likely doesn't have a choice in going, he probably just has to go along with it.
The third person I picked is the woman most far to the left. She has short brown hair and a long black jacket with a plaid dress underneath her. She has a few trendy little shoes too. She was definitely the man's wife standing next to her. He was probably a farmer. She looks like the kind of woman who would do whatever her husband tells her to do. One of those reasons might have been moving because his farm wasn't growing and he wasn't selling a product so he couldn't afford it so he asked her to move. She was undoubtedly the good wife she was, she agreed with him.