John O'Brien
From BR Bullpen
There have been multiple John O'Brien's in major league history.
- John O'Brien (o'brijo01) - player from 1884-1884
- John O'Brien (o'brijo02) - player from 1891-1899
- John O'Brien (minors) - minor league infielder from 1991-1993
Disambiguation Pages are for subjects or titles that might refer to multiple possible BR Bullpen subjects. If your link directed you to this page, you may want to update it to one of the pages above.
