Notes of the Mexican War, 1846–1848

In December 1846, John Jacob Oswandel—or Jake as he was often called—enlisted in the Monroe Guards, which later became Company C of the First Pennsylvania Volunteer Regiment. Thus began a twenty-month journey that led Oswandel from rural Pennsylvania through the American South, onward to the siege of Veracruz, and finally deep into the heart of Mexico. Waging war with Mexico ultimately realized President James K. Polk’s long-term goal of westward expansion all the way to the Pacific Ocean. For G