Meinrad and Katharina Trefzger Bruegger Berger 1808-1882 and 1806-1865

History of Bergers & Trefzgers 'Double Cousins' by Walter Sheblessy

George Berger and Nellie Trefzger Berger 1871-1953 and 1875-1956

Fred Trefzger and Tillie Berger Trefzger 1871-1957 and 1876-1946