WICHMANN in Dorum

I am searching for Eibe Henning WICHMANN, born 1843, Dorum. He came to the US 1866-1870 and settled in Wisconsin. (Family tradition says he was a soldier in the Austro-Prussian War)
Death Certificate says:
Occupation: Carpenter, cabinet maker
Father: Henry
Mother: Katherine

Brother: F. H. WICHMANN, sent note from Cappel Neufeld
Brother: Johann Hinrich WICHMANN, sent letter embossed "Bath" from Cappel Neufeld
Nephew: Rudolph MEHREN, sent letter embossed "Dorum" in 1887 (says uncle Hinrich not interested in leaving since he is exempt from military service).
Thank you for any help you can give me.
    Scott Wichmann

Scott,
     The LDS (Morman) library does have microfilm for the church in Dorum.
If you live anywhere near one of their libraries, you could order the film
and view it. It would be the original records and covers from 1715-1852. If
they lived there in that time period you could track his ancestors from
there. Go to Familysearch.org, click on "search for ancestors", go to the
Family History Library Catalog, and do a place search for Dorum.
    Perhaps you have already looked there..

Thanks! That will be my next step. Scott