Jose Thomas Canales was a significant force in the fight for Hispanic civil rights in Texas, but with influence in Washington D.C. In the first quarters of the twentieth century he had a major impact also in politics. historical analysis, legislation, public law, and philanthropy.. He was a very private person who shunned public acclaim described as a renaissance man functioning in the background such that even his family and friends were not fully aware of his work for the public and general good. Canales was instrumental in helping reform the Texas Rangers to stop the atrocities they had historically committed and condoned. The power of the State of Texas, the special interests, and the prejudices prevailing at the time made this an almost herculean task. He was a fascinating character and a true hero of Texas history. Carlos Larralde, a relative of Canales, is the co-author of the book.