+--Jakob MAYR  (1708-02 NOV 1768)
Johann Georg MAYR  (04 APR 1751-31 OCT 1801)
|     +--Peter WALK  (-1684)
|  +--Johann WALK  (ABT 1676-)
|  |  |  +--Cyprian PFEIFFER 
|  |  +--Maria PFEIFFER  (-1711)
+--Maria WALK  (26 DEC 1711-)
   +--Maria GALLBRUNNER  (-22 DEC 1725)