...o the Martin family, are also represented. These interrelated middle class Irish Catholic families who lived in Philadelphia as well as Baltimore and New Orleans, were involved in several prominent industries in the Philadelphia region, including overseas commerce. Devout in their religious beliefs, the families, the Campbells in particular, played

Patrick Coad, undated Patrick Coad (1783-1872), an Irish immigrant who settled in Philadelphia, was the first patentee of a graduated galvanic battery with insulated poles. Touting his battery among other uses as an instrument that helped cure various diseases, Coad’s invention attracted a good deal of attention within the scientific