Healy, George Peter Alexander. "James K. Polk." January-February 1846. Oil on canvas. Object number: L/NPG.41.2006. Exhibition Label: Eleventh president, 1845–1849. Description: The painting depicts James K. Polk's life and career, showcasing his role in the westward shift of the United States and the vast expansion of territory during his presidency, which raised questions about slavery's future. Collection: National Portrait Gallery. Source/Photographer: National Portrait Gallery.