Johann Heinrich Barth, son of Johann Heinrich Barth and Maria Katherina Bohlander, was born on 3 January, 1756, in Hochspeyer, Bayern, Germany, and died on 18 April, 1813, in Hochspeyer, Bayern, Germany.

Johann Heinrich married Louisa Mauer on 20 February, 1781, in Hochspeyer, Bayern, Germany. Louisa died on 24 March, 1794. They had five children: Johann Henrick, Johann Michael, Johann David, Anna Maria, and Anna Barbara.

Johann Henrick Barth was born on 2 August, 1782.

Johann Michael Barth was born on 9 November, 1783.

Johann David Barth was born on 22 April, 1785.

Anna Maria Barth was born on 5 July, 1789.

Anna Barbara Barth was born on 22 January, 1791.