Book
Smith, Doug. Whirlwind: The Godfather of Black Tennis. Blue Eagle Publishing: Washington, D.C., 2004.
Online Biographies
International Tennis Hall of Fame Biography
https://www.tennisfame.com/hall-of-famers/inductees/dr-robert-johnson
Tennis Great "Whirlwind" Gets His Due: Inducted Into the Hall of Fame
(July 11, 2009 article by Dr. J's grandson, Mr. Julian Johnson)
https://bleacherreport.com/articles/215982-whirlwind-gets-his-due
Smith, Doug. Whirlwind: The Godfather of Black Tennis. Blue Eagle Publishing: Washington, D.C., 2004.
Online Biographies
International Tennis Hall of Fame Biography
https://www.tennisfame.com/hall-of-famers/inductees/dr-robert-johnson
Tennis Great "Whirlwind" Gets His Due: Inducted Into the Hall of Fame
(July 11, 2009 article by Dr. J's grandson, Mr. Julian Johnson)
https://bleacherreport.com/articles/215982-whirlwind-gets-his-due