Jacob Bowman "Rube" Geyer (March 26, 1884 – October 12, 1962) was a Major League Baseball pitcher who played for the St. Louis Cardinals from 1910 to 1913. His key pitch was the drop ball.
- ^ "Rube Geyer Statistics and History". baseball-reference.com. Retrieved 2011-02-05.
- ^ James, Bill and Neyer, Rob. The Neyer/James Guide to Pitchers (Simon & Schuster, 2004), p. 217.
