The Faubourg came to be known as the "American Quarter," as differentiated from the French Quarter. Irish immigration in the early nineteenth century brought English-speaking Catholics to the city, many of whom settled in the new commercial district of Faubourg St. Mary.
Faubourg gained its reputation as the "American Quarter" compared to the historic French Quarter. The influx of Irish immigrants in the early 19th century introduced English-speaking Catholics to the city, who established themselves in the newly formed commercial area of Faubourg St. Mary.