John Jacob Loewenthal is largely remembered as a prominent character in the legend of Paul Morphy. The American champion defeated him twice in two continents: once when he was a boy in New Orleans, and then again when he was a young man during his famous tour in Europe. In his own right, however, Loewenthal was a great master who did more for chess than most of the luminaries of his time. His was a life given solely to the game. On the recent 147th anniversary of his passing, it is fitting to remember his life and career.