John O'Brien
There have been multiple John O'Brien's in baseball league history.
- John O'Brien (o'brijo01) - John E. O'Brien, major league player from 1884-1884
- John O'Brien (o'brijo02) - John Joseph O'Brien, major league player from 1891-1899
- Johnny O'Brien - John Thomas O'Brien, major league player from 1953-1959
- John O'Brien (minors01) - John H. O'Brien, minor league manager from 1901-1907
- John O'Brien (minors02) - John O'Brien, minor league player from 1891-1891
- John O'Brien (minors03) - John O'Brien, minor league player from 1891-1891
- John O'Brien (minors04) - John J. O'Brien, minor league player from 1898-1899
- John O'Brien (minors05) - John O'Brien, minor league player from 1898-1898
- John O'Brien (minors06) - John O'Brien, minor league player from 1898-1898
- John O'Brien (minors07) - John J. O'Brien, minor league player from 1900-1900
- John O'Brien (minors08) - John J. O'Brien, minor league player from 1900-1900
- John O'Brien (minors09) - John O'Brien, minor league player from 1901-1906
- John O'Brien (minors10) - John O'Brien, minor league player from 1908-1909
- John O'Brien (minors11) - John L. O'Brien, minor league player from 1908-1908
- John O'Brien (minors12) - John O'Brien, minor league player from 1909-1909
- John O'Brien (minors13) - John J. O'Brien, minor league player from 1913-1916
- John O'Brien (minors14) - John Joseph O'Brien, minor league player from 1991-2001
- John O'Brien (minors15) - John O'Brien, minor league player from 1994-1994
- John O'Brian, John O'Brian, minor league player from 1993-1993
See also:
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.
We're Social...for Statheads
Every Sports Reference Social Media Account
Site Last Updated:
Question, Comment, Feedback, or Correction?
Subscribe to our Free Email Newsletter
Subscribe to Stathead Baseball: Get your first month FREE
Your All-Access Ticket to the Baseball Reference Database
Do you have a sports website? Or write about sports? We have tools and resources that can help you use sports data. Find out more.