Jacob Helsley the Elder, Rev War patriot
The remarkable Daniel Bly, author of the wonderful series of books "From the Rhine to the Shenandoah" has included the Kauffelt line in Volume 3.
In it, he makes a very clear case that the Mary Margaret Kaemmerer who married Jacob Hetzel in Philadelphia was probably NOT marrying our Jacob, father of the Jacob who married Rosina Foltz.
Our Jacob was married in York, PA on the same day as his brother Christopher.Bly writes, "Baptized as Susanna Maria, she could have been called Maria or Mary, but the name in her marriage record is simply "Susanna."She and Jacob married at the Canadochly Lutheran Church in Windsor Township, York County, Pennsylvania, at the same time his brother Christopher married Anna Christina Abel."