Philadelphia Social History Project: Manufacturing Data, 1850, 1860, 1870, 1880 (ICPSR 34967)

These data have been updated since their release as https://doi.org/10.3886/ICPSR34967.v1, which you used to locate the data. If you need access to a previous version of the data (e.g., to replicate results in an article or report), you can contact ICPSR User Support to find out if a prior version is available.