I am Walter Immesberger's son, therefore, the younger Jacob was my grandfather. I started a family site at myfamily.com on which I've stored my family tree, perhaps that's the best place for us to start. I knew the elder Jacob had another son, but wasn't sure of his name. I live in Stuart, FL...where are you? Lots of Immesbergers in NJ (descendants of Walter). Norman and one other brother (Walter's brothers) living in NJ also. If you e-mail me at firstname.lastname@example.org
with your e-mail address, I'll send you a password so that you can get on to the family site. Just starting it...got in touch with family members this Christmas, so should be adding more members shortly.