O'Blenes Jonathan
O'Brien Nial
O'Connor John Joseph
O'Connor John Joseph
O'Dwyer Liam P.
O'Rosky Mark Edwin
O'Brien James J.
O'Brien Nial
O'Brien R. P. O'Flynn
O'Callaghan Kevin J.
O'Dell Richard
O'Donnell John Patrick
O'Grady John F.
O'Sullivan Denis Joseph
O'Sullivan James Paul
Oakes Daniel Charles Howard
Obata Kou
Obereigner Blahoslav
Oberhoff Markus
Obermann Detlef