Don't know where to start with research?
Start at the beginning. Read the basics about your town, when it was founded and by whom. Why was it founded? Read about the town to answer some of these questions. Then, ask yourself, "What sticks out to me?" What did stick out to you? Or, what didn't you read about that you would like to know more?
Those people, places, events, and topics are your keywords. Maybe there is a festival every year that celebrates a crop your town was known for. Which crop was it? Why was it successful here? Does your town still produce it?
Research is all about answering a question that you want to know.