Trollope received more attention in her lifetime for what are considered several strong novels of social protest: "Jonathan Jefferson Whitlaw" (1836) was the first anti-slavery novel, influencing the American Harriet Beecher Stowe's "Uncle Tom's Cabin" (1852). It focuses on two powerful families – one that strongly encourages slavery and another that strongly opposes it and provides sanctuary for slave refugees. It antagonizes pro-slavery characters, making them appear foolish and uncultured. Frances also brings out her idea of a stereotypical American by drawing certain characters as shrewd, convincing, sly and greedy.