There's a fascinating article by Richard Coplen on the history of Waterstown House, near Glasson (once the village of Waterstown Estate), which was also published in the Westmeath Independent in 2004, on this link

                   http://mickcoplen.com/History/Waterston/Waterston.htm

The gallery includes recent digital photos of the ruins, as well as the unique lantern slide images below of the exterior and interior of the house taken around 1880 (from the George Eastman House website) 

 

   

 The elegant, if slightly cluttered, drawing room at Waterstown House, country seat of the Hon. Robert Reginald Harris-Temple