- Johannes Peter Bach (1779-?) married Maria Eva Fug on 8 May 1879 in Necharhausen, Germany.
- Their second youngest son, Johan Christoff (Christopher) married Margaret Schwefel on 2 May 1844 in St Andreas Catholic Church, Necharhausen, Germany.
- Christopher and Margaret with their children, Anna and Susannah, arrived in Sydney on 9 March 1855 aboard “Cateaux Wattel”.
- Susannah Bach (1848-1923) married Johan (John) Bush in St Johns Catholic Church, West Maitland on 13January 1868 (Registration No. 2539 / 1868).
See also Schweinsberg family page for details of a subsequent marriage.