Mahr, Joannes Petrus Joannes Petrus MahrI1071688722b: 4 MAY 1807d: Feiten4 MAY 1807 - Birth - ; Ubach over WormsVoorouders Wilhelmus Mahr - Gerardus Mahr - 20 FEB 1813 Maria Catharina Vrauwenraedt - 17 SEP 1804 Joannes Petrus Mahr4 MAY 1807 - Petrus Plum - Petronella Plum - 22 DEC 1844 Cornelia Leien -