People : Jos O'brien to Julien O'brien
Jos O'brien 3 people
Joseph O'brien 127 people
Josephine O'brien 5 people
Joshua O'brien 6 people
Joy O'brien 5 people
Joyce O'brien 17 people
Judith O'brien 17 people
Judy O'brien 15 people
Julia O'brien 11 people
Julie O'brien 24 people