Hi, Jacob and Constantina were my great great grandparents. My great grandparents were Phillip Weisenberger and Louise Grob. I do have some info on Jacob and Constantina. Not sure how accurate it is but I did get if from an older Weisenberger. If you would like to contact me this is my home email: graywolf @ mwt.net. I live in Wisconsin and would be happy to hear from you and share info.