Katharina Trefzger was born April, 30, 1806 in Wehr, Baden. Her father was Sebastian Trefzger and her mother was Maria Anna Doede Trefzger.
When Katharina was 21 years old she married Johann Bruegger on May 16, 1827. Katharina and Johann had 3 children: Maria Anna 'Nauni' born 4/3/1827, Theresia born 3/4/1830, and Karolina born 11/12/1833.
Johann was the owner of the large textile mill in Wehr.
Johann Bruegger died September 5, 1834 when Katharina was 28 years old.
Several years later Katharina married Meinrad Berger.