@jesusmargar Add that Haitian independence was recognized by France in 1824 (IIRC, after independence declaration in 1804) and occupation of the Spanish part of the Island by Haiti went from 1822 to 1844... And the pirate was probably part of all that in one way or another...

You have a great background to put your characters in trouble in the West Indies and US South, with political troubles, slavery/anti-slavery, and maybe a dash of voodoo if you 'd like some supernatural.