Siobhan Mather’s Fight Against Neuroblastoma Siobhan Mather was born on 1st May 2015. Siobhan brought fun and feistiness, with her independent character, to everyone around her, including her older sister Ciara aged nine and her older brother, Liam aged six. On 1st July 2017, aged just 2, Siobhan became lethargic and was taken to her GP. After being …