The Delaware & Hudson Canal C0. and its Gravity Railroad was an important industrial enterprise in 19th century America, marketing Pennsylvania anthracite coal through its Canal and, later, its extensive railroad network. It relied on the labor of marginalized peoples- immigrants, women, children and people of color- to construct and operate its Canal. Historian Bill Merchant has conducted extensive research on the plight of the many marginalized peoples who comprised the vast majority of this workforce. This presentation relates how the labor of immigrants contributed to its immense success, using stories from primary sources along with many period images.