The family of four year old Thomas Cammack, who lost his battle against Neuroblastoma earlier this week, say they will keep fighting for better understanding of this childhood cancer.
The family from Selby will be raising money for research and for the charity Famililies Against Neuroblastoma.
His mum Toni said: "He fought neuroblastoma with courage and determination right to that last breath. He knew no fear. We love you son, you are and always will be my inspiration."
A man from Doncaster is preparing for the London Marathon to raise money for a boy with an aggressive form of cancer.
Thomas Cammack, from Selby, was diagnosed with Neuroblastoma last year. He has had induction chemotherapy, surgery, high dose chemotherapy with stem cell rescue and radiotherapy.In January, though, scans showed a tumour on his brain. His best chance now is going to New York for lifesaving treatment.
John Sedgwick from Doncaster is hoping to raise thousands of pounds for Thomas' treatment by taking part in the London Marathon.
Around five hundred children have set off on a 3 mile walk to raise money for a little boy who has a rare form of cancer. Thomas Cammack suffers from Neuroblastoma. His parents needs to raise half a million pounds to take him to America for life saving treatement.