In 1915, workers struck oil at a well in Butler County, Kansas, called Stapleton #1. Over the next several years, civilian and military demand for oil transformed what had once been the farm towns of Augusta, Towanda, and El Dorado (pronounced El Dor-AY-do in local parlance) into petroleum communities. Risk-taking entrepreneurs supported drilling and exploration that brought wealth to some and loss to others. Teams of geologists, using what were still novel and experimental techniques, fanned out across the prairie to find the right places to drill. Workers found employment that was hard and dangerous but offered excitement and opportunity. Families of those workers set up