 We have the pleasure of stating that his voyage was made in safety, and that a letter has been received from him in Havana, sending his thanks and acknowledgements for kind treatment to some of the army officers at Tortugas, and stating that he was just about to sail for Old England.We do not doubt that every gentleman officer belonging to the garrison of his prison guard rejoices at his escape.Most historians believe that notices such as this about Grenfell were fabrications.