1. Jacob Hasler was born about 1680 in , Canton Bern, Switzerland. He died after 1730.
Jacob married Magdalena Byland. Magdalena was born about 1690/1695 in Schintznach, Canton Aargau, Switzerland. She died after 1730.
They had the following children:
2 F i Susanna Hasler was born about Apr 1725 in Schlosswil, Canton Bern, Switzerland. She was christened on 27 May 1725 in Moehnthal, Canton Bern, Switzerland. + 3 M ii Abraham Hasler 4 M iii Hans Hasler was born about Nov 1730 in Schlosswil, Canton Bern, Switzerland. He was christened on 31 Dec 1730 in Moehnthal, Canton Bern, Switzerland.