People : Gaylene O'brien to Glen O'brien
Gene O'brien 5 people
Genevieve O'brien 5 people
Geo O'brien 4 people
Geoffrey O'brien 2 people
George O'brien 47 people
Gerald O'brien 28 people
Geraldine O'brien 13 people
Gerard O'brien 12 people
Gertrude O'brien 5 people
Gina O'brien 6 people
Ginger O'brien 2 people
Giovanna O'brien 2 people
Gladys O'brien 4 people
Glen O'brien 4 people