Researching family from Dusseldorf (area) of Germany
I have documentation that indicates my great grandfather came from Dusseldorf Germany (or perhaps a surrounding town). I know his date of birth and I have his father's name as well. I've checked FamilySearch and Matricula already but cannot find record of him, or his parents. I'm wondering what suggestions people have for how I can best proceed, whether through a paid or free service.