I am researching the Arend family in Ohio and seem to have hit a dead end. 
I have a Dominic Arend b. 19 Dec 1819, d. 9 Dec 1903 married to a Mary
Wagoner b. 15 Aug 1829, d. 17 Jan 1917.  They married about 1850 in Ohio. Both claim to be from Belgium/Lux. 
On all census records and any document I can find either Belgium is written
or Luxembourg.  I cannot find any immigration records.  He immigrated at age 19, so that would have been in 1838 or so. His parents were Lawrence and Mary Arend (who did not immigrate). He had a younger brother, Nicholas, who also came to Ohio. I haven't found any records that would lead me back to a particular town in Belgium/Lux. Any suggestions would be welcomed. Thank you so very much.