""Prudent Soldier"" is a detailed biography of Major General E.R.S. Canby, a prominent figure in the American Civil War and the Reconstruction era. Written by Max L. Heyman Jr., the book chronicles Canby's life from his birth in 1817 to his death in 1873. Heyman provides a thorough account of Canby's military career, including his service in the Mexican-American War, his command of the Department of New Mexico, and his role in the Union's western...