Rick, Rosina's maiden name seems to be Gremel, not Grewel, in census info & Osceola & Huron County, Michigan BMD records from familysearch.org.
There is a family tree on ancestry.com that has Rosina's siblings & ancestors (parents & father's parents) online.
http://awt.ancestry.com/cgi-bin/igm.cgi?op=GET&db=mcclen...Hope this helps. RP