血を流すカンザス
The Thaddeus Hyatt Collection is a collection of accounts and correspondence given by Hyatt to the Kansas State Historical Society. The majority of the material concerns activity between 1854 and 1861, particularly during Bleeding Kansas. Notable accounts of Bleeding Kansas in the collection include those of S. P. Hand, Alexander McArthur, James Hall, Jerome Hazen, John Ritchie, J. A. Harvey, and N. W. Spicer.