Downtown Minonk, Illinois. Photo by author. Illinois Leaving Minonk The Eiben Family and the Road to Texas In the 1880s and 1890s, Minonk, Illinois, sat at the junction of multiple major rail lines. The city of Minonk, located in Woodford County, also had numerous new German immigrants who had come to work in the coal mines, supply lumber to the booming city of Chicago, or farm the surrounding area and nearby lands in LaSalle County. We had decided to detour to LaSalle and Woodford Counties to research my mother-in-law's family, the Eibens. Her great-grandfa