Walshe was born in Ennis in the West of Ireland, Walshe was educated at the Benedictine Abbey of Glenstal from 1964 to 1970.
Glenstal is south facing and has an excellent view of the Galtee Mountains.
Vincent (Séamus) (1930–2005), a Benedictine priest at Glenstal Abbey, Sister Íde of the Convent of The Sacred Heart, Mount Anville, Dublin, Oonagh (who married the Irish artist Patrick Swift), Cora who married the politician, Seán Dunne, T.D. When Kathleen was an undergraduate at University College Dublin, she was introduced to the future Dr. Dermod Devane of Limerick.