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Using a newly developed geographic information system transportation database, we study the impact of gaining access to rail transportation on changes in population density and the rate of urbanization between 1850 and 1860 in the American Midwest. Differences-in-differences and instrumental variable analysis of a balanced panel of 278 counties reveals only a small positive effect of rail access on population density but a large positive impact on urbanization as measured by the fraction of people living in incorporated areas of 2,500 or more. Our estimates imply that one-half or more of the growth in urbanization in the Midwest in the late antebellum period may be attributable to the spread of the rail network. [ABSTRACT FROM AUTHOR]

We examine the extent and correlates of part-year manufacturing during the late nineteenth century using unpublished data from the manuscripts of the 1870 and 1880 censuses of manufactures. These are the earliest comprehensive estimates available on this topic. Although the typical manufacturing plant operated full-time, part-year operation was not uncommon. Indeed, the likelihood of part-year operation varied across industries and location and with plant characteristics, and workers in such plants received higher monthly wages than those in firms that operated yearround, compensating them for the loss of work and possible inconvenience. [ABSTRACT FROM AUTHOR]