At the time of Griffith's Valuation, George Boate was leasing Duckspool to P.C. Howley, when it was valued at £29. Lewis refers to it as the seat of J.M. Galwey in 1837. In 1786 Wilson notes it as the seat of Mr. Boate.
On the 25-inch map of the 1890s it is labelled Clashnalachan. In 1906 it was the property of Charles Nugent Humble and valued at £11. A house is still extant at the site.