First found in Kilkenny. The first on record was Theobald FitzWalter, a distinguished Norman noble who accompanied Strongbow and was created the Chief Butler of Ireland in 1177. They occupied the Castle of Kilkenny.

In the mid-19th century, Ireland experienced one of the worst periods in its entire history. During this decade in order to ease the pressure of the soil, which was actually depleted by the effects of the previous years' grain crops, landowners forced tenant farmers and peasants onto tiny plots of land that barely provided the basic sustenance a family required. Conditions were worsened, though, by the population of the country, which was growing fast to roughly eight million. So when the Great Potato Famine of the mid-1840s hit, starvation and diseases decimated the population. Thousands of Irish Families left the country for British North America and the United States. The new immigrants were often accommodated either in the opening western frontiers or as cheap unskilled labor in the established centers. In early passenger and immigration lists there are many immigrants bearing the name Butler: Christopher Butler who settled in Virginia in 1670; the following, Charles, Daniel, Edward, Elizabeth, George, Giles, James, John, Joseph, Martin, Michael, Patrick, Richard, Thomas and William, all arrived in Philadelphia between 1840 and 1860.

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