• Birth: 17 Mar 1824 in Haldimand, Ontario
• Death: 19 Aug 1899
• Mother: Wilhelmina Lint (born 1797 in Meinsweller, Prussia, died 1841)
• Father: Louis Muhlenbacher (born Abt 1788 in Meinsweiller, Prussia, died Abt 1852)
• Married: Louisa Klein (born 3 Jan 1827 in Keners Weilen, Prussia, died 15 Dec 1911) on 25 Mar 1846 in Rainham Township, Haldimand County, Ontario with children
  1. Barbara Muhlenbacher (born 18 Nov 1846)
  2. Ludwig Mehlenbacher (born 16 Nov 1848 in Rainham Township, Ontario, died 19 Jul 1934)
  3. Maria Muhlenbacher (born 10 Dec 1850 in Haldimand County, Ontario, died 1942)
  4. Andreas Muhlenbacher (born 28 Dec 1852, died 6 Jan 1853)
  5. Carolina Muhlenbacher (born 11 Nov 1853, died 1924)
  6. Katherine Muhlenbacher (born 28 Mar 1856 in Ontario, died 1932)
  7. Johannes Muhlenbacher (born 28 Mar 1856 in Haldimand County, Ontario, died 23 Nov 1935)
  8. Nicolaus Mehlenbacher (born 6 Apr 1858 in Haldimand County, Ontario, died 22 Sep 1932)
  9. Andrew Mehlenbacher (born 9 Aug 1860 in Haldimand County, Ontario, died 26 Jan 1938)
  10. Luisa Mehlenbacher (born 9 Aug 1860)
  11. Wilhelmina Mehlenbacher (born 14 Aug 1865 in Ontario, died Abt 1920)
  12. Christian Muhlenbacher (born 17 May 1868 in Haldimand County, Ontario)
  13. Conrad Mehlenbacher (born 1870 in Haldimand County, Ontario)

He changed his name from Johannes M"uhlenbacher to John Mehlenbacher, and the names of his children from M"uhlenbacher to Mehlenbacher, around 1868.