Johann Conrad Gramlich was born on November 7, 1747 in Sennfeld, Baden and died on January 11, 1825 in Sennfeld, Baden at the age of 77. He married Maria Barbara Throm on November 12, 1771. She was born on November 12, 1752 in Sennfeld, Baden and died on March 15, 1819 in Sennfeld, Baden at the age of 66.

Marie Barbara Gramlich, daughter of Johann Conrad Gramlich and Maria Barbara Throm, was born on October 1, 1779 in Sennfeld, Baden, Prussia and died on November 27, 1839 in Sennfeld, Baden, Prussia at the age of 60. She married Johann Gorg Andreas Betz, son of Johann Karl Betz and Maria Wilhelmina Hespelt, on July 26, 1802 in Sennfeld. He was born on August 17, 1772 in Sennfeld, Baden, Prussia and died on February 16, 1829 in Sennfeld, Baden, Prussia at the age of 56.

Eva Christina Betz, daughter of Johann Gorg Andreas Betz and Marie Barbara Gramlich, was born on July 6, 1816 in Sennfeld, Baden, Prussia and died on December 28, 1878 in Sennfeld, Baden, Prussia at the age of 62. She married Johann Heinrich Martin Heckmann, son of Johann Matthaus Heckmann and Anna Margaretha Eckhard, on September 25, 1836 in Sennfeld, Baden. He was born on November 24, 1812 in Sennfeld, Baden, Prussia and died on February 12, 1883 in Sennfeld, Baden, Prussia at the age of 70.