Hello, what was your great grandfathers name and when was he born and where England? Did he come from Cornwall England? My husbands paternal grandmother was Gladys Hunkin, she was born in Tasmania Australia in 1889. Her grandfather Joseph and great grandfather John were both born in Marazion Cornwall England. I may be able to help you or if I can't I know of others who may be able to help you trace your great grandfathers parents line. Please contact again