So basically you're saying that Blackerby is a sloppy historian whose numbers can't be relied on. Good to know.
I don't suppose you can cite a single verifiable historian who supports your claims about there being a much larger number of free blacks in the south than Blackerby claims, can you?
By the way, do you know who Maryelissa Tyrona Brown-Bollin is?
Wasn’t she a singer with The James Gang?