The Rise of Silas Lapham is a realist novel by William Dean Howells published in 1885. The story follows the materialistic rise of Silas Lapham from rags to riches, and his ensuing moral susceptibility. Silas earns a fortune in the paint business, but he lacks social standards, which he tries to attain through his daughter's marriage into the aristocratic Corey family. Silas's morality does not fail him. He loses his money but makes the right moral decision when his partner proposes the unethical selling of the mills to English settlers.
Howells is known to be the father of American realism, and a denouncer of the sentimental novel. The love triangle of Irene Lapham, Tom Corey, and Penelope Lapham highlights Howells' views of sentimental novels as unrealistic and deceitful. -- wikipedia summary