Nulty was a cleric during the Irish Potato Famine. Typhus played a major factor in the Irish Potato Famine. Noted by Kehoe (1986) as being unique to the Irish potato collection. This is illustrated by the Great Irish Potato Famine. He traveled in Ireland as the Irish Potato Famine was beginning. Another snack associated with Philadelphia is Irish potato candy. The plants were from Ireland, so the crop became known as the "Irish potato". Hayes's Catholic maternal grandparents emigrated from Ireland during the Irish Potato Famine. The event is sometimes referred to as the Irish Potato Famine, mostly outside Ireland. This organism caused the Irish potato famine in the 1850s. At that time, the Irish potato crop remained relatively unscathed. Irish potato candy are a familiar South Jersey treat as well. She worked for the relief of the famine-stricken Irish peasants during the Irish Potato Famine. The Irish potato famine was due in part to Anti-Catholic laws.