Ordemann and Ordeman Worldwide Research

I'm trying to set up a world-wide Ordeman(n) family tree, starting from the beginning in Germany around the end of the 16th century until today, where Ordeman(n)s are living mostly in Germany, Netherlands, Norway, U.S.A., Australia, South Africa. My database feeds a genealogical homepage (text in German) with downloadable family graphic trees. See http://ordemann-genealogy.jimdo.com/. Please help to gather information about the relations between living family members and complete/amend the data of deceased.