I just consider it speculation for now. But I descend from a Hambright family in Alabama, they all identify as Black Americans.
On 23andme I share 17cM with a woman descended from Lt. Col Frederick Hambright. And on Ancestry, I share 15cM - 9cM with ten people who descend from him (more specifically, descend from his grandson; Lawson Hambright).
I don't have the specifics for exactly who possibly sired my family, but I wanted to get others opinions on the matter.