There is evidence that, after Walker's bid for U.S. recognition failed and his militia was ousted from the country, Appleton began to employ his ships in support of the Confederate states, at least in gun-running if not by allowing his ships to be used in the transport of slaves.
After Walker's failed attempt at gaining U.S. recognition and his militia was removed from the country, Appleton began employing his ships in support of the Confederate states, possibly by providing weapons or allowing them to be used for transporting slaves.