6. If it shall appear to the Court or a Judge or to the Principal Land Registry Officer of the District that any notice of the sale other than the posting of the printed notices hereinbefore mentioned ought to be given, or if the creditor, debtor or other person interested in the property to be sold shall desire that any such other notice be given, such other notice may be given at any time either before or after the posting of the printed notices hereinbefore mentioned.