wichita.edu
…of future mining wealth, these settlers named the township after Potosi, the famous silver-producing region of Mexico. In reality, farming, not mining, was the mainstay of the area. With both pro- and anti-slavery sentiments present, the Kansas-Missouri border became especially volatile. Northern settlers, including John Brown and his family, insisted on…
https://www.wichita.edu/academics/fairmount_las/history/SPH/MineCreek/BleedingKansas.php