Isaac Franklin wasn't just a major player in the Trade up here in Maryland and Virginia, he was a game changer in the Trade, an early trade speculator.
Then he sold out and moved to Louisiana. Where he bought six (6) plantations. He lived very well and prosperously. In fact, one of those plantations is where the ceremonies and dinner for the Louisiana Endowment for the Humanities were held in which V received the award for best history of Louisiana last year.
When he died there was a great deal of attention paid. But none of that attention in the long obits of the newspapers mentioned that he had been a speculator (which, believe it or not is a different category of slave trade than slave trader).
He died very wealthy, but he died young. Very young for someone of his kind. One might hope that was some sort of retribution -- his plantations in Louisiana were, of course, sugar plantations, and those bought to work sugar had short lives -- for the speculation slave trade that allowed Isaac to buy 6 sugar plantations in Louisiana. His company scoured the Eastern Shore of Maryland empty of likely stock (mostly male, mostly between 14 - 25, trained farm workers) to be sold in New Orleans for these sugar plantations. He and his partner shipped them via their own slave ships.
I have Isaac's biography here (1938). It is not in print. If one were to try and purchase it used, the lowest price is $500. Thank goodness for interlibrary loan. However, because this volume is priced at $500, I can have it only for two weeks.