Abt 1876-Yes, date unknown
| Emma Marquardt | |
| B: | Abt 1876 |
| , , Ohio, USA | |
| D: | Yes, date unknown |
Abt 1877-Yes, date unknown
| Edwin Marquardt | |
| B: | Abt 1877 |
| , , Ohio, USA | |
| D: | Yes, date unknown |
Abt 1879-Yes, date unknown
| Frederick Marquardt | |
| B: | Abt Nov 1879 |
| , , Ohio, USA | |
| D: | Yes, date unknown |
Abt 1851-Yes, date unknown
| Maria L. | |
| B: | Abt 1851 |
| , , Ohio, USA | |
| D: | Yes, date unknown |
Abt 1853-Yes, date unknown
| Charles F. W. Marquardt | |
| B: | Abt 1853 |
| D: | Yes, date unknown |