The O'Donnell's of Truagh Castle

We have our ancestry pretty much sorted out, so we're not really looking for ancestors. My wife's ancestor is John O'Donnell from Truagh Castle, who was also connected to the Limerick council and Thomond Bridge around 1750. His son was John O'Donnell who became a wealthy East India Merchant, and settled in Baltimore, USA. Another son was Henry Anderson O'Donnell who made a career in the British Bengal army of the East India Company. He had an illegitimate son to an Indian mistress, Henry O'Donnell. This Henry is my wife's direct ancestor.

We are looking for infromation on Truagh Castle itself. We know it was already in ruins in the mid 1700's, but apparently there was also a "Trough House" a few miles towards Limerick in Ardnacrusha. This probably was more than likely the actual residence of the Truagh O'Donnells. Trough House was extensively remodeled into a "castelated house" by Charles Routledge O'Donnell, son of Henry Anderson O'Donnell, and half brother of Henry, my wife's ancestor.

It appears that at the original Truagh Castle there is a house in front of it. We are very interested in finding out who resides there, and we would like to get in contact with them. We are planning a visit to the region in the near future, and we would like to visit the site and meet the current resident of the house in front of the ruins. Also we would like to know who the caretaker is of the ruins to find out if we could have (a guided) access to the ruins.

Thank you for all the help you can offer us, Vickie and Hans.