Today I got a letter from a Horst Kuther (Erwin's grandson), he took 3 months to reply to my letter, but he did have some imformation. After the war Erwin stayed in Berlin using his false papers from the Werewolf organisation and began his profession as a "Merchant". He lived at 2 different addresses in the Berlin-Zehlendorf area (Von-Luck-Strasse & Pfeddersheimer Weg bei der Ehefrau), I do not know which army's Zone of Occupation that area of Berlin came under, but I doubt it was the Russians. As far as his job goes it looks as though he was more of a "black marketeer" than a merchant. I have had no luck in getting a reply from his other family in Stuttgart, but the German military archive centre (WASt) have agreed to do a search of their records. I have asked for his full SS records instead of the few pages I have got, though the WASt letter did state it could take up to several months.