Great list, we’re you aware that CHOSSA exist in Sierra Leone and Liberia? These were freed slaves that were repatriated to “Africa” but not to the (colonial) nation they were originally stolen from.
A friend of mine is Sierra Leonian. I did a DNA test and I am 60% Nigerian and 14% Sierra Leonian. My friend did a test and it appears that I am more Sierra Leonian than my friend is. In fact my friend is almost entirely Nigerian.