My paternal grandfather was Alfred Sandwell Hurrell, married Elizabeth Alice Blake. A S Hurrell had four children, Dulcie, Elsie, Hilda Mary and Alfred Clarence (my father). Dulcie and Hilda had no children. Nothing seemed to be known in the family about Grandfather's siblings (only a fleeting reference to "black" Tom). The only mention of origins was the Isle of Wight, perhaps where Edward emigrated from. Not much help but I have not done any serious research, all part of the jigsaw!