Good point. A couple of points to consider though. First, the name problem-there were multiple people with the same name,(including more than one Prince Hall) (an issue that would become much more convoluted in the Civil War)there was frequently no distinction between Blacks, Indians and mixed race individuals-making lineage more difficult to discern, and since the use of surnames (for all non-whites) was uncommon, you will see appellations like "Cato Negro" or "John Indian" and not really know the heritage of that person unless you have other documentation.

Another point-muster rolls are often missing or incomplete.

And, finally-don't discount the efforts of the free Blacks in cities like Boston, who contracted the supply of clothing, equipment and food to the military.