What I mean is among the baptists, which denominations of baptists are the descendants of these you've listed?
Southern Baptists, American, Northern, etc.....
I'm sure you understand what I'm asking.
I don't think these people are associated with the Southern Baptist Convention.
Loosely, and from memory - at the time of the London Confessiona, Baptists were doctrinally divided into two categories - particular and general. The particular, or regular, Baptists were essentially Calvinist (to varying degrees). The general Baptists were essentially Arminian (to varying degrees). When America was settled, the particular Baptists formed a National Baptist Convention, generally in agreement with the London Confessions. About the time of the war between the USA and the CSA, the National Convention split into a Northern Convention and a Southern Convention. The Southern Convention is the SBC of today. The Northern Convention has renamed itself the American Baptist Convention. In the 1930, some fundamentalist churches withdrew from the Northern Convention and formed the General Association of Regular Baptist Churches (GARBC). In the 1950s, some fundamentalist churches withdrew from the Southern Convention and formed the Baptist Bible Fellowship, International. There are many smaller groups. And there are Baptist churches which are actually independent of any larger organization.
In summary, most of today's Baptists in America can be traced back to the London Confessions. The main exceptions are the Freewill Baptists and the General Baptists, who are Arminian.