William Ireland from Chester settled in Ireland in the late 17th century, purchasing estates in counties Kildare and Laois. He married Margaret de Courcey, sister and heir of Almerius de Courcery, Lord Kingsale. Their grandson, Richard Ireland, settled in the vicinity of Headford, county Galway and married Catherine Lynch of Lydican. Their son, Reverend William Ireland, Warden of Galway, married Magdalen, daughter of John Irwin of Lisbally, county Sligo and granddaughter of Henry Irwin of Roxborough, county Roscommon. They had two sons, De Courcey Ireland and Richard Ireland. De Courcey Ireland and his wife Susanna Stanley, sister of Sir Edmund Stanley, whose grandfather acquired the estates of Low Park and Bethlem, Kilkenny West, county Westmeath, in the early 18th century, had six sons, including Arthur Ireland, bursar of Queen's College, Galway.