BERNARDO MATHIAS BACK (b.13 Jun 1858;d.6 Oct 1921)
sp: MARGARIDA KESSLER (b.24 Mar 1864;m.26 Sep 1882;d.18 Jul 1883-SANTA CRUZ DO SUL - RR)
2. JOSEF BACK (b.1883)
sp: ANA EMILIA KIST
2. ANNA BACK (b.1886)
sp: SUSANA KESSLER (b.2 Sep 1866;m.9 Sep 1884;d.3 Mar 1951)
2. ANA BACK (b.26 Apr 1885-SANTA CRUZ DO SUL - RR;d.14 Sep 1956)
sp: PETER KIST (b.26 Jun 1886;d.9 Feb 1914)
sp: JOÃO KIST (b.11 Jun 1890;d.26 Mar 1952)
2. PEDRO BACK (b.7 Apr 1889-SANTA CRUZ DO SUL - RR;d.26 Jan 1956)
sp: MARIA ELISABETH RAUBER (b.21 Jan 1891;d.14 Jul 1973)
3. FREDERICO BACK (b.1923;d.1994)
sp: ARSÉLIA KIST (b.1930;d.1983)
2. MARIA BACH (b.27 Jun 1890-SANTA CRUZ DO SUL - RR)
2. ANGELA MARGARIDA BACK (b.4 Oct 1894-SANTA CRUZ DO SUL - RR;d.10 Apr 1976)
sp: HENRIQUE RECH (b.16 Mar 1897;d.14 Apr 1966)
2. APOLLONIA BACK (b.9 Dec 1896-SANTA CRUZ DO SUL - RR)
2. GUILHERME BACK (b.25 May 1899-SANTA CRUZ DO SUL - RR)
sp: ANA MARIA SCHMITT (b.10 Jul 1896;d.1 May 1976)
3. ARMINDO BACK
2. JOÃO BACK (b.7 Sep 1900-SANTA CRUZ DO SUL - RR;d.16 Jun 1965)
sp: MARIA VERONICA WEISS (b.22 Sep 1899;d.16 Jun 1965)
2. ALOYSIUS BACK (b.7 Mar 1908;d.5 Jun 1976)
sp: OLINDA RAUBER