David Hackett Fischer is a historian who wrote a Pulitzer prize winning book about George Washington and is probably best known for his provocative 1989 book Albion’s Seed: Four British Folkways in America
I wonder where Thomas Sowell's thesis regarding "black rednecks" fits in. I see his take as basically what is considered American "black culture" today was inherited from Southern cracker culture, which was a product of the Scots/Irish highlanders who settled in the South.
It's such a sad commentary that, simultaneously, Fischer "focuses almost exclusively on positive elements of African and American black life" and that the resulting book is "doomed as a driver of public discussion" for being implicitly non-woke.
Steve Sailer's review is also of interest: https://www.takimag.com/article/faded-roots/
On the connections between African and African-American culture, the highly influential late Yale art historian Robert Farris Thompson has much to say. Of course, it mostly conforms to the "exclusively celebratory" rules of contemporary discourse. But still enlightening.