Krogmann

I am looking for Birth/Baptism date and parents of Herman Heinrich Krogmann
born about 1815 in Oldenburg. I do not know when he immigrated to the US,
But I do know that on 08 Nov 1836 he married Mary 'Gertrude' Steure or
Stieve in Cincinnati, Ohio. They lived in Cincinnati, Ohio and Campbell
County, Kentucky. Mary Gertrude was born in Germany, but I have no idea
where and she died in 1901 in Campbell Co., KY. Death date of Herman
Heinrich Krogmann is unknown.

Any information is greatly appreciated.
Regards,
Nancy