Genealogisches Handbuch bürgerlicher Familien (= DGB) 1, Charlottenburg 1889, S. 22
___________________ | ___________________|___________________ | ___________________| ___________________ | | | | |___________________|___________________ | Johann Matthias BARTHELS | ___________________ | (1754-1829)x1790 | | | | ___________________|___________________ | | | | |___________________| ___________________ | | | | |___________________|___________________ |--Philipp BARTHELS | (1794-1874)x1827 ___________________ | | | ___________________|___________________ | | | Peter FELDHOFF | ___________________ | | x1757 | | | | |___________________|___________________ | | | Beatrix FELDHOFF | (1759-....)x1790 | Jakob LOOS | | x1683 | Leonhard LOOS | Katharina SAULS | | (1686-....)x1712 | Anna Sophia LOOS | ___________________ (1718-....)x1757 | | | Beatrix RAESFELD |___________________ x1712