My grandmother was Sandy Callin's sister and I have researched the family for some years , always with a brick wall after Sandy's father, John James Callin. My father, long deceased, had no knowledge of his American and Australian cousins, although I have made contact with them through my research. Are you descended from Louisa's first marriage? I live in England but have visited the island and photographed Sandy's grave. Let me know if you would like the photo. Susan