The Seven Black Presidents Before Barack Obama
https://fookembug.wordpress.com/2008/12/01/the-seven-black-presidents-before-barack-obama/
Sorry but the article had too many mistakes. Harding was not 28th President, Coolidge was not 29th.
I don’t object to the idea that white Americans are part black more than has been known. I found out that is the case for me as well from Ancestry.com.
But this author I don’t think can be believed to be competent.
Most of that is complete nonsense.