Main Currents in American Thought will stand as a model for venturesome scholars for years to come. Readers and scholars of the rising generation may not follow Parrington's particular judgments or point of view, but it is hard to believe that they will not still be captivated and inspired by his sparkle, his daring, and the ardor of his political commitment.
In Volume II, The Romantic Revolution in America, 1800 - 1860, Parrington treats such influential figures as John Marshall, John C. Calhoun, Andrew Jackson, Abraham Lincoln, Washington Irving, James Fenimore Cooper, Herman Melville, Daniel Webster, Ralph Waldo Emerson, Henry David Thoreau, and Nathaniel Hawthorne