Africans on the North American Frontier, 1501-1848

In 1846, two years after the George Washington party found refuge in the North Oregon Country, the convergence of the Northwest Ordinance, the Naturalization Act of 1790, the Texas Revolution, and the ideology of Manifest Destiny created powerful conditions for accelerating Anglo-American expansion across the Mexican North and Indigenous homelands west of the 98th meridian.  This expansionist momentum culminated in 1846 when the United States provoked a war with Mexico in pursuit of California and other western territories.

 

      The conflict ended on February 2, 1848, when Mexico ceded vast portions of its northern territory to the United States. Through the coerced signing of the Treaty of Guadalupe Hidalgo, Mexico lost nearly half of its national territory, transferring California, Nevada, Utah, New Mexico, Arizona, and portions of Colorado, Kansas, and Oklahoma to U.S. jurisdiction.

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      The success of this territorial conquest fueled further calls for expansion throughout the second half of the nineteenth century. These developments complicated the inclusive possibilities represented by African American frontiersmen such as Jim Beckwourth, whose discovery and promotion of a pass through the Sierra Nevada accelerated migration into California’s gold country and hastened white settlement of the West. Yet, like the colonial projects of Spain and the Mexican Republic before it, U.S. settlement and control of the region remained incomplete and contested.

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      For Black westerners, the process of becoming the overlooked “third root” of North American society repeated itself across nearly every state and territory acquired by the United States after 1836. Texas and Indian Territory were notable exceptions because the westward expansion of slavery produced larger African-descended populations there.

 

      Nevertheless, despite their marginalization, Africans and African Americans made indispensable contributions to both early Mexico and the United States. As laborers, explorers, settlers, mountain men, sociopolitical “Others,” and resilient survivors, they helped shape the development of North America’s borderlands and racial frontiers. Their experiences demonstrate that Africans were not merely subjects of historical change but active agents whose contributions left a lasting imprint on the political, economic, and cultural development of the continent.

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Next: Bibliography

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