Often thought of as the inventor of baseball - the great American pastime - Abner Doubleday was first and foremost a soldier. My Life in the Old Army is comprised of a set of previously unpublished writings (the originals are housed at the New-York Historical Society) with an emphasis on Doubleday's tour of duty during the Mexican War. He was on hand for the first shots of the conflict, for the battles of Monterrey and Buena Vista, and later served in Saltillo after the campaign moved farther south toward Mexico City. Fluent in Spanish, he traveled far and wide in Mexico and describes his experiences in this volume.