Omura Tomohiko
Onishi Tatsumi
Ono Mitsugu
Onuchukwu Anthony I.
Onuki Giichi
Ookubo Toshitsugu
Oonishi Shigeki
Orifice Industries Ltd.
Orleans G. P.
Osaka Tomikazu
Osaka Gas Company Inc.
Osaka Gasu Kabushiki Kaisha
Osaka Gasu Kabushiki Kaisha (Osaka Gas Company Ltd.)
Osaki Julian S.
Osawa Kozo
Osborn Coy D.
Osburn Coy D.
Oshima Terumitsu
Ostrand James C.
Ostrowski E. A.