He married Margaret . Margaret was born at of Reading, Berks, Pennsylvania Abt 1712 .
They were the parents of 11
children:
Jacob Mertz
born Abt 1730.
Margaretha Mertz
born Abt 1732.
Catherine Mertz
born 1734.
Eve Mertz
born Abt 1736.
Elizabetha Mertz
born Abt 1745.
Conrad Mertz
born Abt 1747.
Henry Mertz
born Abt 1749.
Maria Elizabeth Mertz
born Abt 1751.
Magdalena Mertz
born Abt 1753.
Maria Mertz
born Abt 1755.
Nicholas Mertz
born Abt 1757.