Many modern Irish Pittsburghers can trace their roots to immigrants fleeing an Ireland devastated by the Great Potato Famine of the mid-1800s. They migrated to Pittsburgh, a booming industrial town, and worked in the iron and steel mills, the mines, and the railroads. Irish women became domestic servants in such large numbers that "Bridget the Maid" was a stock character on stage and later in films. The immigrants settled in neighborhoods such as the Point, the Hill District, Homewood, and the North Side. Fighting anti-Irish and anti-Catholic sentiments, they paved the way for their children,...