Web of Debt - Today We're All Irish: Debt Serfdom Comes to America:
"In the American South (mainly New Orleans), the Irish lived in swamp land infested with disease. Here, Irish men were looked upon as actually lower than slaves. As one historian put it, if a plantation owner lost a slave, he lost an investment; if he lost a laborer, he could always get another. Because the Irish workers were plentiful and expendable, they were often sent in to do dangerous jobs for which the slave-owners were reluctant to send their valuable slaves.2"