Jacob was a private in the 7th company Naorthampton Co. militia.. There is a record of property deeded 26 Oct 1787 from Johannes to son Jacob. Jacob was on the tax list of 1788 and owned 140 acres of land.
On 9 Jan 1797 a petition was put forward to the Orphan's Court in Northampton Co., by his eldest son John for division of Jacob;s land as he died intestate. Thenpetition names all of Jacobs living children: John, Elizabeth, Catherine, Susanna, Mar y, Henry, and Jacob