. . "1939-02-25" . . . . . "Mizuho Maru" . . . . "18.8" . . "''Mizuho''" . . . . . . . "Japanese seaplane carrier ''Mizuho''" . . "Mizuho-class" . . . . . "''Mizuho''-class" . . "40.744" . . "Mizuho" . . . . . "Torpedoed and sunk byUSS Drum, 2 May 1942" . "1938-05-16" . . "183.6" . . "Mizuho Aircraft Group" . . "Japanese seaplane carrier Mizuho" . "Japanese seaplane carrier Mizuho" . "1937-05-01" .