My Great Uncle, Harry Bruton, was a gamekeeper/water bailliff there at about the same time. My mum remembers visiting him a lot at the lough there up to WW2.
Made the journey to Mullingar about 7 yrs ago, went to Belvedere house and agree, the Jealous wall is very interesting.
My family came from Lynn in Westmeath but apart from an uncles grave I didn't really get very far.
Helen