Posted on: Ottawa Co., MI Biographies - About People Who Lived In Ottawa Co., MI Board URL: http://cgi.rootsweb.com/~genbbs/genbbs.cgi/USA/Mi/OttawaBios?read=42 Surname: Grinwis, Tanis ------------------------- I am Jan Grinwis and busy with a worldwide study on Grinwis people. Is there anyone of you with is also interested in the Grinwis family tree. I do have a database with lot of Grinwis people but it is not complete. Can anyone help me.