Sorry, I don't know a village named "Wersch" in the vicinity of Aachen. There is a village near Much, Rhein-Sieg county, named Wersch. Do you know the connection of Klara Weil to Aldenhoven/Jülich?
Addition
Sorry, I don't know a village named "Wersch" in the vicinity of Aachen. There is a village near Much, Rhein-Sieg county, named Wersch. Do you know the connection of Klara Weil to Aldenhoven/Jülich?