Towns in the 1830-40's Kingdom of Hannover?

I would appreciate very much if someone would tell me if the following
1830's and 1840's villages or cities were in the Kingdom of Hannover,
Germany? And, also, what province, state or kingdom they are in today?

Cloppenburg, Oldenburg
Hofa
Holler, Nass.
Wegholm

Thank you!

Newton Brand