Jesse Walworth Thayer Orndorff
- Bats Both, Throws Right
- Height 6' 0", Weight 168 lb.
- Debut April 18, 1907
- Final Game April 24, 1907
- Born January 15, 1881 in Chicago, IL USA
- Died September 28, 1960 in Cardiff-By-The-Sea, CA USA
In 1925, Jess Orndorff was secretary of the Association of Professional Ball Players of America, formed to help professional players who had fallen on hard times. In 1936 he was running the National Baseball School of Los Angeles, CA, which had some success in training players for professional leagues.