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 | Anna Sophia LOOS > | (1759-....)x1790 (1718-....) Philipp BARTHELS | ___________________ | (1838-....)x1863 | | | | ___________________________|___________________ | | | | | Simonette FELDHOFF | ___________________ | (1809-1871)x1827 | | | |___________________________|___________________ |--Philipp BARTHELS | (1864-....) ___________________ | | | ___________________________|___________________ | | | _____________________| ___________________ | | | | | | |___________________________|___________________ | | | Bertha LANGE | ___________________ (1843-....)x1863 | | | ___________________________|___________________ | | |_____________________| ___________________ | | |___________________________|___________________