Hunterdon County New Jersey Queries

SHIPMAN
Jacob SHIPMAN born abt 1697 lived at New Germantown (today Oldwick) in Tewksbury twp, Hunterdon co, NJ. Will probated there 16 Oct 1761. Would appreciate help regarding his parentage, land records, or other information of interest. He was an Elder in the High Dutch Lutheran Church which was also located at Oldwick circa 1740s. Thank you in advance for any help in this matter.

Werner Stanley