Great question! In addition to the Scarlet Letter and Huck Finn, we use a good number of short stories by Hawthorne (Young Goodman Brown, The Minister's Black Veil, Earth's Holocaust), Cooper (Eclipse), Melville (Bartleby Scrivener), Poe (Pit & Pendulum, Tell-Tale Heart, Purloined Letter, Gold-Bug, Masque of the Read Death, Fall of the House of Usher), and others like Twain, Harte, Bierce, London, O Henry, etc. We always read Moby-Dick (yes, every word of it – I have been surprised how much the students come to love it). We read many American poets from the Oxford Book of American Verse (edited by Mattheissen). We also include quite a few American hymns along with our primary source reading. We actually do To Kill A Mockingbird with our Modernity year, as we follow a Great Books approach. I am planning to include Wendell Berry in our next Modernity rotation as well; perhaps Hannah Coulter or a collection of his short stories like A Distant Land.