Family: John Mayer / Catharine Schaeffer (F12)
 | Johannes Mayer (1719-1786) 
|
Henry Meyer ( -1812)  |
 | Alexander Schaeffer (1712-1786) |
Eva Anna Angelica Engle (1708-1772) |
| John Schaeffer (1739-1783) |
| Sabina Schaeffer (1742-1811) |
 | Anna Maria Schaeffer (1744-1823) |
 | Johann Heinrich Henry Schaeffer (1749-1803) |
 | John Mayer (1745-1812)
|
 | Catharine Schaeffer (1747-1825)
|
| John Meyer (1779-1851) |
| Michael Meyer ( -1794) |