Adam S. Cohen in Harvard Magazine:
In August 1912, Harvard president emeritus Charles William Eliot addressed the Harvard Club of San Francisco on a subject close to his heart: racial purity. It was being threatened, he declared, by immigration. Eliot was not opposed to admitting new Americans, but he saw the mixture of racial groups it could bring about as a grave danger. “Each nation should keep its stock pure,” Eliot told his San Francisco audience. “There should be no blending of races.” Eliot’s warning against mixing races—which for him included Irish Catholics marrying white Anglo-Saxon Protestants, Jews marrying Gentiles, and blacks marrying whites—was a central tenet of eugenics. The eugenics movement, which had begun in England and was rapidly spreading in the United States, insisted that human progress depended on promoting reproduction by the best people in the best combinations, and preventing the unworthy from having children.
…Oliver Wendell Holmes Sr.—A.B. 1829, M.D. ’36, LL.D. ’80, dean of Harvard Medical School, acclaimed writer, and father of the future Supreme Court justice—was one of the first American intellectuals to espouse eugenics. Holmes, whose ancestors had been at Harvard since John Oliver entered with the class of 1680, had been writing about human breeding even before Galton. He had coined the phrase “Boston Brahmin” in an 1861 book in which he described his social class as a physical and mental elite, identifiable by its noble “physiognomy” and “aptitude for learning,” which he insisted were “congenital and hereditary.” Holmes believed eugenic principles could be used to address the nation’s social problems. In an 1875 article in The Atlantic Monthly, he gave Galton an early embrace, and argued that his ideas could help to explain the roots of criminal behavior. “If genius and talent are inherited, as Mr. Galton has so conclusively shown,” Holmes wrote, “why should not deep-rooted moral defects…show themselves…in the descendants of moral monsters?” As eugenics grew in popularity, it took hold at the highest levels of Harvard. A. Lawrence Lowell, who served as president from 1909 to 1933, was an active supporter. Lowell, who worked to impose a quota on Jewish students and to keep black students from living in the Yard, was particularly concerned about immigration—and he joined the eugenicists in calling for sharp limits. “The need for homogeneity in a democracy,” he insisted, justified laws “resisting the influx of great numbers of a greatly different race.”