The Jean-Georges lived in Lutzelbourg all of his life where he died at age 70 in 1787. At age 2 the twin's sister Marie Ursule Grossholtz was born and two years later another sister Marie Elisabeth was born on 02 March 1722. Another set of twin boys were born to the family on 03 March 1724. Their names were Jean Michel and Frederic. At Age nine Jean-George's sister Anne Catherine Grossholtz was born the day after Christmas in 1726. At the age of 11 Jean-Georges mother gave birth to another daughter, Marguerite Grossholtz on December 29. One year later in November his sister Anne Catherine passed. In those days it was a tradition when you lost a daughter or son you would name with the same name. On January 29, 1731 the birth of a new daughter gave Jean-Georges parents and opportunity to name their new daughter Anne Catherine. Another brother, Jean Paul was born on July 3, 1733. When the twins turned 16 their second sister called Anne Catherine died in 1733 at the age of two. By 1735 Jean-Georges married Marie-Madeline Schild. At age 25 his first daughter Marie Madeleine Agnes was born in 1743. As far as I can tell he separated from his first wife and married Marie Barbe Stoeckel on January 8, 1743. The couple had one child a girl born in 1744 and baptized Anne Marie. Marie Barbe Stoeckel died on November 10, 1744.
Jean-Georges married a third time on May 20, 1756 to Barbe Rhein in the commune of Herrlisheim. Herrlisheim is positioned on the rich alluvial farmland to the west of the River Rhine, north of Strasbourg. The town is part of the canton of Bischwiller and the district of Haguenau and is located on the road from Strasbourg to Lauterbourg along the A35 motorway . When Jean-Georges was 39 his wife Barbe Rhein gave birth to a son Valentin on February 15, 1757. The name meaning is strength or health. The next year Barbe gave birth to a daughter Catherine on April 20, 1758. Another son, Joseph was born on July 9, 1759. On October 1, 1761 Jean-Michael the twin's father passed away in Lutzelbourg at the age of 73.