Captain James Campbell is mentioned involved with a gold distribution in Lafitte's memoirs:
"...I recommended to Mr Hall, MR CAMPBELL, Mr Sherman, and to those of Bolivar to keep our promise and distribute the gold to the indicated places".
Questions that arise are -
Is Mr Sherman Mathew "Mexico" Sherman?
Who is Mr Hall?
Who are "those of Bolivar"?
Four names are mentioned, does that mean that there were four "indicated places"?
What say yea, Bigscoop?
Arg! Odd you would bring this up, matey, as I was just discussing this very thing again on the phone this afternoon. I do believe that up to the present that I have now amassed enough information to grab hold of the general concept behind Laffite's affairs at Galveston Island. In short explanation it might be best to view these activities as that of a large corporation with lines of credit in the form of investors, much like a corporation of today with primary lenders and shareholders, if you will. Just as with the end of any corporation there are debts to be paid and the remaining assets/capital divided among the shareholders. Thus, "I recommended to Mr. Hall, Mr. Campbell, Mr. Sherman, and those of Bolivar that we stick to our promise and distribute the gold to the indicated places."
Isolation, this was Galveston Island, so what to do with all of the hard money that entered isolated port? This is where ledgers and accounting come into play, the numbers in these ledgers being held in a type of hard money trust so that lines of credit can be opened and your lenders/shareholders and distant business managers kept up to date on their potential returns and the businesses checks and balances, etc. So if we want to look at the activities at Galveston Island then, perhaps, we need to look at them as if they were the activities of a large and often illegally run corporation. This all leading up to "the promise to distribute the gold to the indicated places." Lenders, shareholders, business managers, etc., etc., etc.
In 1818, with the signing of the Adams Onis Treaty the writing was on the wall and the corporation was now on the verge of close, half of the corporation's assets, or the $476'000 referenced in the memoirs now sent back east to satisfy certain interest, the other half remaining with the corporation until all operations at Galveston Island ceased to exist, at this point the remaining capital also sent back east so it too could be distributed to the various lenders, shareholders, etc., etc., etc., many of these parties probably also having a list of resources that needed paid.

I'm pretty certain this is how it all operated.