Ioway leader Frank White Cloud (above) and others signed the treaty of 1836. Painting by George Catlin.
The Treaty of December 20, 1836 was also known as the "Platte Purchase."*
As an Ioway tribal member we interviewed for "Lost Nation: The Ioway" said, "We had our own trail of tears."
http://www.politico.com/news/stories/1207/7470.html
More on the Treaty on the Ioway Cultural Institute's website.
*Source: Ioway Cultural Institute Website