Elliot Jaspin, Buried in the Bitter Waters: The Hidden History of Racial Cleansing in American . Excerpts are available online at https://books.google.com/books?id=5WTZ8-wbTFEC <https://books.google.com/books?id=5WTZ8-wbTFEC&pg=PT21&lpg=PT21&dq=%22horac e+Heffren%22&source=bl&ots=TrJoUm-kXI&sig=8NaBzAar5HNm77UbdNsa0u7coQM&hl=en& sa=X&ei=_rVcVc2lM4TJtQXOoYGgBw&ved=0CB0Q6AEwADgK#v=onepage&q=%22horace%20Hef fren%22&f=false> &pg=PT21&lpg=PT21&dq=%22horace+Heffren%22&source=bl&ots=TrJoUm-kXI&sig=8NaBz Aar5HNm77UbdNsa0u7coQM&hl=en&sa=X&ei=_rVcVc2lM4TJtQXOoYGgBw&ved=0CB0Q6AEwADg K#v=onepage&q=%22horace%20Heffren%22&f=false. Used copies at affordable prices are available online at Amazon. Jaspin's book includes various incidents of racial cleansing in American during the first part of the 20th century. The entire first chapter relates to incidents in Washington County, Indiana, and how they were shaped by Horace Heffren.