Just weeks after the 1916 Rising, Eva traveled to Dublin accompanied by Esther and was pivotal in the efforts to reprieve the death sentence of her sister Constance Markievicz awarded for her instrumental role in the 1916 Rising, which was successfully converted to a life sentence. Her poetry composed during this period reflects the personal trauma and horror she was exposed to visiting her sister in solitary confinement. She further campaigned to abolish the death sentence overall and to reform prison standards and attended the trial of Irish nationalist and fellow poet Roger Casement thus showing solidarity and support for the overturning of his death sentence.