The father of (Josephi) Andraea Helmstetter, Franz (Francisci) Helmstetter was born before his son and married a woman with a given name of Gertrude (Gertrudis).
His marriage likely occurred in Germany, 1768 +- 10 years. (1758 to 1778.)
His birth was around 1730 +- 20 years. (1710 to 1750.)
Josephi Andraea Helmstetter lived in Gerlachsheim, Baden, Germany, so it's possible his father at least passed away in Baden.