As a result of the Great Famine in Ireland, many Irish families were forced to emigrate from the country.
By 1850, the Irish made up a quarter of the population in Boston, New York City, Philadelphia, Buffalo, and Baltimore.
[9] Bay Ridge, Brooklyn, was originally developed as a resort for wealthy Manhattanites in 1879, but instead became an upscale family-oriented Italian- and Irish-American community.
As the "new immigrants" from Southern and Eastern Europe arrived 1880s-1914, the Irish incorporating them into their established system.
[17] After 1945, a large-scale movement to the suburbs was made possible by the steady upward social mobility of the Irish.
[18] Fairytale of New York by Irish band The Pogues refers to the NYPD choir singing Galway Bay.