Does anyone know of a crew member by the name of either Heard or Whitehead who was a chef on board the Titanic? He was my grandfather. My grandmother was married twice, her first husband (Whitehead) was my mothers father and when he died she married Heard whose name my mother took. My grandmother apparently destroyed his survivors certificate and so, with my mother having died recently, we do not know which of them was the seafarer. Any information would be gratefully received.