Your mother's family seem to show in the 1901 census in Cloonsellan, Kilteevan, Ballintober south. Her parents were John and Kate. One source on Mundia (whatever that is) says Kate is Kate Philban, but I've not verified this. John's parents seem to be John Mugan and Margaret Dooner. Margaret shows up in the 1911 census in Cloonsellan.