sentences:  Tradition says the city is named after a former slave, freed by Captain Hugh Bradley, the namesake of the county and leader of the main early settlement party which established the city.The original plat was laid out on land donated by Isaac Pennington, a key member of Bradley's company.Around the turn of the twentieth century, Warren found itself in the middle of a boom in the timber industry, a resource which continues to be important to the city's economy, although the lumber yards that were vital to Warren throughout the past century are no longer in operation.