Heiderman/Heideman

I am looking for any information on my ancestors from the Schildesche area. This is all of the information that I have:
Wilhelm HEIDERMAN born 1810 in Prussia, son of Albert HEIDERMAN and Kurten HERMONA
married to Johanna Elsebein also born 1810 in Prussia. They had four sons that I know of.
Dietrick Heiderman born 24 July 1844
Herman Heiderman born Dec 25 1845
George Heiderman born 12 Dec 1852
Casper Heinrich Heiderman born 1859 in Schildesche, Bielefeld
These date could be wrong. I am finding that the information that was past down isn't always correct.
I think that they were of the Lutheran faith. I would appreciate any help on this matter.
Thank you very much
Tamara