"Dakota Resources: In Illingworth's Footsteps" https://www.sdhspress.com/journal/south-dakota-history-31-3/dakota-resources-in-illingworths-footsteps https://www.sdhspress.com/@@site-logo/sdshp-logo.jpg "Dakota Resources: In Illingworth's Footsteps" Return To Issue by Ernest Grafe and Paul Horsted Download this article for free by clicking on the PDF file below.
