When Bertha Elisabeth Kahlke was born on 5 November 1892, in Engelbrechtsche Wildnis, Steinburg, Schleswig-Holstein, Germany, her father, Hermann Kahlke, was 26 and her mother, Meta Mohr, was 19. She married Heinrich Ludwig Lorenzen on 20 June 1914, in Krempe, Steinburg, Schleswig-Holstein, Germany. They were the parents of at least 1 son and 1 daughter. She died on 3 May 1943, in Husum, Nordfriesland, Schleswig-Holstein, Germany, at the age of 50.
Some characteristic forenames: German Kurt, Hans, Otto, Erwin, Fritz, Gerhardt, Hedwig, Helmuth, Joerg, Klaus, Reinhold, Willi.
East German: from a Germanized pet form of a Slavic personal name such as Dalibor or Dalimir, based on the element dal, from the Old Slavic adverb dalje ‘farther’.