• Bucks, S. (2017, June 13). This African American woman invented your home security system. Retrieved from https://timeline.com/marie-van-brittany-brown-african-american-invention-home-security-system-jamaica-queens-d70e74f4b3d9

• Entrepreneur. (n.d). Philip Downing, inventor of the mailbox. Retrieved from https://www.entrepreneur.com/slideshow/289684#3

• History.com. (2021, Jan 21). Harlem Renaissance. Retrieved from https://www.history.com/topics/roaring-twenties/harlem-renaissance​

• NAACP. (n.d). NAACP History: George G. Woodson. Retrieved from https://www.naacp.org/naacp-history-carter-g-woods

• WJS. (2019, Jan 8). Sheila Johnson: a billion dollar businesswoman. Retrieved from https://www.wsj.com/podcasts/secrets-of-wealthy-women/sheila-johnson-a-billion-dollar-businesswoman

​

​