I need some info concerning Irish immigrant's contribution to industrial u.s. economy 1845-1855. Thanks!?

This information is needed for my IB HOTA historical investigation IA and I found plenty of information on why Irish immigrated during this time period (famine) but very little information about how they contributed to increasing America%26#039;s industrial economy. Any help would be greatly appreciated! thanks!!
I need some info concerning Irish immigrant%26#039;s contribution to industrial u.s. economy 1845-1855. Thanks!?
%26quot;Between 1852 and 1855, the Wisconsin Commission of Emigration actively encouraged the settlement of European immigrants in Wisconsin. Pamphlets extolling the state%26#039;s virtues were published in German, Norwegian, Dutch, and English and were distributed throughout Europe as well as in eastern port cities. Advertisements were placed in more than nine hundred newspapers. By 1855, however, the rise of antiforeign sentiment, or nativism, led to the dissolution of the commission.%26quot;





%26quot;t is estimated that more than 1 million people fled Ireland between 1845 and 1855 and many took refuge in Boston, New York, Philadelphia, and Chicago. By 1850, the Irish population was 18 percent of the total population of Philadelphia with over 72,000 Irish-born persons in the region.





Irish immigrants, largely from rural areas, ironically found themselves evolving into urban dwellers. As unskilled laborers, they populated the industrializing cities of the United States at astounding rates. In Philadelphia, textiles, metals, transportation and construction were major areas of Irish immigrant labor. Male Irish immigrants engaged in arduous tasks such as the building of railroads and canals while many Irish women found work as domestic servants. Many of these impoverished settlers took up residence in the already over-crowded cities and established Catholic schools, churches, hospitals, and political and social organizations. Their transition into American life, however, was not smooth as this growing minority came into direct and sometimes violent conflict with the Protestant majority. %26quot;