Family serch

I am looking for the family of Gilbert Cour He marrried Agnes Bertram July 30 1837 They lived in Hanover
I know of two boys Julius and Alfred
They has 2 or 3 girls whom I dont know of.
Gilbert was the commissioner of agraculture for the city of Neustadt around 1850 can anyone hep.
Thank you
           George Cour

George -

Where is this Neustadt? I gather there was more than one Neustadt in the
kingdom of Hannover.

I ask because my ggg-grandmother's (maiden name Halberstadt, later married
my ggg-grandfather Gottlieb Kuhne) first husband was Johann Heinrich
Bertram. They married in 1801. He died in 1804, however. I do not know
whether they had any children. He lived in Hachmuhlen, but she lived in
Neustadt. These were two immeidately adjacent villages (now combined into
modern Hachmuhlen) about 7 miles N-E of Hameln. There was also a Conrad
Bertram living in Hachmuhlen at the time. Conrad married Christine Heine
(? - I'm not sure of the last name), also in 1801.