Trefz, Johann Michael (1831-1892) 
|
Gruber, Christine Katharine (1830-1889)
|
| Bürk, Johann Georg (1840-1918)
|
| Eckert, Katharina Rosine Christine (1844-1908)
|
| Bürk, Karoline Johanna (1866-1867) |
| Bürk, Wilhelm Johann (1868-1869) |
Bürk, Wilhelm Johann (1869-1905)  |
| Bürk, Christina Katharina (1870-1870) |
| Bürk, Johann Georg (1871- ) |
| Bürk, Johann Christian (1874-1874) |
| Bürk, Karl Christian (1875- ) |
| Bürk, Wilhelmine Johanna (1878-1882) |
| Bürk, Luise (1881- ) |
| Bürk, Christian (1884- ) |
| Trefz, Christian (1867-1928)
|
| Bürk, Rosine (1876-1937)
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| Trefz, Anna Frieda (1899- ) |
