The mainstream British attitude towards the Irish in the first half of the 1840s was based upon the belief in Irish improvability. Most educated British rejected any notion of Irish racial inferiority and insisted that under middle-class British tutelage the Irish would in time reach a standard of civilization approaching that of Britain. However, the potato famine of 1846-1852, which coincided with a number of external and domestic crises that appeared to threaten the stability of Great Britain, led a large portion of the British public to question the optimistic liberal attitude toward the Irish. Rhetoric concerning the relationship between the two peoples would change dramatically as a result. Prior to the famine, the perceived need to maintain the Anglo-Irish union, and the subservience of the Irish, was resolved by resort to a gendered rhetoric of marriage. Many British writers according portrayed the union as a natural, necessary and complementary bond between male and female, maintaining the appearance if not the substance of a partnership of equals. With the coming of the famine, the unwillingness of the British government and public to make the sacrifices necessary, not only to feed the Irish but to regenerate their island, was justified by assertions of Irish irredeemability and racial inferiority. By the 1850s, Ireland increasingly appeared not as a member of the British family of nations in need of uplifting, but as a colony whose people were incompatible with the British and needed to be kept in place by force of arms. This study describes the change in British perceptions of relations with Ireland as a result of the potato famine from a gendered rhetoric of marriage to one of master and servant.