- https://www.newspapers.com/image/168166128/?terms=%22Shields%20green%22&match=1 Column 4 Pike col. 5 several colored men
- https://www.washingtonpost.com/history/2019/10/13/five-black-men-raided-harpers-ferry-with-john-brown-theyve-been-forgotten/
- https://www.
amazon.com/gp/product/1613735715?ie=UTF8&tag=washpost-20&camp=1789&linkCode=xm2&creativeASIN=1613735715
- John Brown and His Black Allies: An Ignored Alliance
Hannah N. Geffert The Pennsylvania Magazine of History and Biography The Pennsylvania Magazine of History and Biography Vol. 126, No. 4 (Oct., 2002), pp. 591-610
https://www.jstor.org/stable/20093575