A 1911 Report Set America On a Path of Screening Out ‘Undesirable’ Immigrants

The Dillingham Commission is today little known. But a century ago, it stood at the center of a transformation in immigration policy, exemplifying Americans’ simultaneous feelings of fascination and fear toward the millions of migrants who have made the United States their home.

In 1911, the Dillingham Commission produced perhaps the most extensive investigation of immigration in the history of the country, an exhaustive 41-volume study that demonstrated just how vital 19th-century and early-20th-century immigrants were to the U.S. economy. But the commission’s own recommendations, delivered in the context of a fierce backlash against migrants, set the foundation for the end of industrial-era immigration and a half-century of exclusionist policies.

Congress created the Commission in 1907 in an effort to find a compromise between proponents and opponents of immigration. During the previous several decades, pundits and lawmakers had debated the need to impose restrictions on immigration. Lawmakers enacted several polices intended to interdict those deemed to pose a specific danger, such as people afflicted with contagious diseases or involved in moral turpitude. One notable act excluded Chinese laborers, and another prohibited the entry of workers who had been hired overseas by U.S. companies.