My 4th great Grandfather is in the FB Heufeld-Mastort: 3079 SERVO Mathias, aus Lothringen The final entry after his children are listed is this: WK 121/10 Mathias Servaux, Leinweber, aus Lothringen.-Wien 04.Mai 1770 vgl. Dr.E.Henz: Fb Hatzfeld 11194 I know this says he came from Lorraine in 1770 and is a linen weaver. What does the WK mean? What about the numbers - 121/10? I searched throughout the CD and found many similar references, but no definition for WK. Regards, Larry Fischer