Karl Sturm reports that Klara Fauerbach owned a "notarielle Beurkundung" (“notarized certification”) about 1970 according to which her grandfather August Krebs “bought the Castle Mill property on 4 February 1870 for 22,000 "Gulden" from Franz Hembes, mayor and estate owner in Ober-Olm, who had earlier acquired it from the miller Michael Hembes for 20,000 "Gulden". According to information from Mrs. Fauerbach, her grandparents were then in possession of the property until 1905…”. Since the buying and selling dates and the circumstances of the transaction are at odds with the official data in the cadastral register, the whole business must be approached with caution.