Catherine was born on September 29th, 1874 in Dublin and her baptism took place on April 10th, 1874 in Blackrock. Her godfather was Joseph Green and her godmother was Elizabeth Stafford. Catherine's father was William(Gulielmo) Murray and her mother was Bridget(Brigida) Carthy. Her paternal grandparents were Joannis Murray and Marise; her maternal grandparents were Carthy and Annae. She had three brothers and two sisters, named Michael, Daniel, Patrick, Brigitta and Joanna. She was the second youngest of the six children.