def get_table_name(self, ind):
        """
        Return both the table_name (i.e., 'specimens')
        and the col_name (i.e., 'specimen')
        for a given index in self.ancestry.
        """
        if ind >= len(self.ancestry):
            return "", ""
        if ind > -1:
            table_name = self.ancestry[ind]
            ###name = table_name[:-1] + "_name"
            name = table_name[:-1]
            return table_name, name
        return "", ""