''Burke's Irish Family Records'' refers to two Furnell brothers coming to Ireland in 1645 and settling in county Limerick. One of them bought Caherelly Castle and over 400 acres from General Vernon. Successive generations of Michael Furnells lived at Ballyclough and Caherelly. They had extensive limestone quarries and patents to hold fairs in the locality and set up a bank in 1804. At the time of Griffith's Valuation the Furnell estate was located in the parishes of Caherelly and St Nicholas, barony of Clanwilliam and Knocknagaul, barony of Pubblebrien. In the 1870s George Cantillon Furnell of Caherelly Grange owned 1,741 acres in county Limerick and his uncle Frederick Furnell of Caherelly House owned 124 acres. In the late 18th century Michael Furnell of Ballyclough, county Limerick, married Mary Stacpoole of Cragbrien, county Clare and their third son Captain Thomas J. Furnell lived at Heathmount Lodge, Sixmilebridge, county Clare. He married Arabella Wallace and had a large family.