Jacob "Jake" Pennartz was the son of Mathias Joseph Pennartz and JoAnna Catharina Gielen.
Jacob Joseph Pennartz was baptised on March 1st, 1879 in Weert, Holland at St. Martin's Catholic Church. Godparents were: Wilhelmus Gielen and Maria Petronella Pennartz.
Matthias Pennarz and his three sons; Herman, Jacob, and Simon immigrated to the U. S. through New York Port, New York on 12 March 1893. Papers issued February 3rd, 1893.