According to the Registry Entry, "The Horizon" had the following characteristics.
It was a "Ship" as distinguished from other naval vessels, such as a sloop or a brig.
It's Master was a man named "H. White".
It was 310 feet long in 1801. It was Single Deck with Beams.
It was Manufactured in Charleston South Carolina. It was sheathed with copper over boards.
It was 1 year old when it was inspected by Llyod's.
It's original Owner was a man named "Mackler" and apparently Co-Owned by a man named "McClure."(edit: I have since come to believe that "Mackler" is merely "McClure" misspelled.)
It draughted 16 feet when heavily loaded.
It's Ports of survey were London and St. Vincent.
It's condition (at time of examination) was classified "A-1".
I learned of this ship while researching the Natural Born Citizen issue, which I have discovered is riddled through and through with the issue of slavery.
I have come to the conclusion that most of our modern misunderstanding of the issue was because abolitionists were deliberately trying to obfuscate the meaning of citizenship to create a legal loophole through which they could abolish slavery.
Asserting that English law applied, helped them in this endeavor. Vattel based Natural Law gave them no purchase upon which to build such a legal argument.
This ship "Horizon" was broken on the rocks off the North West coast of France in 1807, and it's cargo was seized by French Authorities. This incident represents the first time that the Napoleonic government applied the "Berlin Decree" to a U.S. Ship, and it caused a very major stir in our Government at the time.