The repeated failure of Ireland's potato crop in the late 1840s led to a major famine and a surge in migration to the US. We build a dataset of Irish immigrants and their sons by linking males from 1850 to 1880 US census records. For comparison, we also link German and British immigrants, their...

Whether immigrants advance in labor markets relative to natives is a fundamental question in immigration economics. It is difficult to answer this question for the Age of Mass Migration, when US immigration was at its peak. New datasets of linked census records show that immigrants experienced...