Who is Jack O'Brien? Jack O'Brien was a Major League baseball Player (MLB) who made his MLB debut in 1882-05-02. Welcome to the Jack O'Brien biography by Sportspool.com Baseball database. Jack O'Brien was an Major League Baseball Player who was born on June 12, 1860. Jack O'Brien was born as John K.. Jack O'Brien wieght: 184 lbs. Jack O'Brien height: 70.0 inches. MLB baseball player, Jack O'Brien passed away on 11 / 20 / 1910 in PA, Philadelphia, USA
Currently we are featuring Jack O'Brien MLB statistical data. Below you will find the overall record for Jack O'Brien from the teams he managed, the number of games he worked, his winning percentage, the number of wins, the total number of losses and other personal data. An MLB Player controls all matters of team strategy on the field and team leadership, he sets the line-up and starting pitcher before each game as well as making substitutions throughout the game. There have been many Players over the years that we do not list as they were not the team Player. Enjoy the Jack O'Brien MLB historical data provided below.
MLB Baseball Player Profile for Jack O'Brien
Also known as John K.