Baseball Almanac is pleased to present a comprehensive chart of ballplayer throwing arms. Chart note: All the possible throwing combinations are included on the chart and interesting facts are found at the bottom of the page.
"I threw it (memo written by American League President Bobby Brown addressing left & right handed pitches by pitchers in games) in the garbage." - Greg Harris in The Cultural Encyclopedia of Baseball (Light, 1997)
Throwing Arms Chart by Baseball Almanac
During the first Major League season (1876) there were ninety right handed Major League ballplayers and ten left handed Major League players. Those inaugural lefties were Bob Addy , John Cassidy , Jimmy Hallinan , Bill Harbridge , Fergy Malone , John Mullen , Lip Pike , Billy Redmon , Joe Start & Oscar Walker .
The four players officially listed by Major League Baseball as being able to officially throw both left & right handed are: Tony Mullane (1881-1894), George Wheeler (1896-1899), Moxie Manuel (1905-1908) & Greg Harris (1981-1995).
Why are there players listed without a known throwing arm? Because baseball history is an ever evolving field of study and early baseball history had record keeping practices that left much to be desired.