Johannes married Elisabetha Mayer about 1831. Elisabetha (daughter of Heinrich Mayer and Elisabetha Lohr) was born on 25 Jan 1808 in Pfalz; died on 8 Feb 1892 in Washington County, Wisconsin, USA. [Group Sheet] [Family Chart]

1. Johannes Gehrhart Gayhart was born on 7 Jun 1832 in Kriegsfeld, Pfalz, Bayern; was christened on 10 Jun 1832 in Kriegsfeld, Pfalz, Bayern.
2. Elizabeth Gayhart was born in 1834 in Pendleton, Niagara County, New York, USA.
3. Michael John Gayhart was born on 29 Sep 1836 in Pendleton, Niagara County, New York, USA; died on 30 Dec 1899 in Grand Chute, Outagamie County, Wisconsin, USA.
4. Franciska Gayhart was born in 1839.
5. Martin Gayhart was born in 1841.
6. Adam Gehrhart was born in 1846 in Pendleton, Niagara County, New York, USA; died in 1875 in Barton, Washington County, Wisconsin, USA.
7. Mary Gayhart