You might be interested in the following. The second has several opinion’s of Washington's regarding black patriots.

A_history_of_the_negro_troops_in_the_war of the Rebellion by George Washington Williams

The Colored Patriots of the American Revolution by William Cooper Nell, Harriet Beecher Stowe

Both books were used as school books in black schools until about 1955, white history books replaced them.

Happy Trails!
Tom Martin
www.Confederate-flags.org
www.Piedmontflag.com