[OL]Nordenham - Manthey

I have found a reference to a Hugo Manthey that I need clarification on.

Day of departure: 06 Juni 1925 Archive Ident.No.: AIII15-06.06.1925-2
Captain: Departure harbour: Bremen
Company: Nordd. Lloyd, Bremen
Destination harbour: New York
Trav.Class No. Family Name First name(s) Sex Age Fam.Status Place of
residence Nationality State or province Profession
Destination US-State
III Klasse 19 Manthey Hugo m 18 led
Nordenham Deutsch Oldenburg Landwirt Tagel�hner
Brooklyn NY

Is Nordenham part of Oldenburg state? I thought it was in Niedersachsen.
Which is correct?

Thank you,
Marlies E. McNicol
Mission, BC, Canada