African American athletes.

https://www.biography.com/people/groups/african-american-firsts-athletes

https://www.counterpunch.org/2003/06/06/sports-politics-and-the-1960s/

http://www.usatf.org/Athlete-Bios/Hall-of-Fame/2013-Hall-of-Fame-Bios/Eleanor-Montgomery.aspx

https://buildnationblog.wordpress.com/2015/11/21/wilma-glodean-rudolphthe-first-american-woman-to-win-three-gold-medals-in-a-single-game/

http://www.pe.com/2017/04/15/raincross-tradition-track/

https://en.wikipedia.org/wiki/Maria_Taylor_(analyst)