Abt 1861-Yes, date unknown
| John P. Clifford | |
| B: | Abt 1861 | 
| Iowa | |
| D: | Yes, date unknown | 
 Abt 1861-Yes, date unknown
| Dora C. Cook | |
| B: | Abt 1861 | 
| Iowa | |
| D: | Yes, date unknown | 
 Abt 1880-Yes, date unknown
| Ira Clifford | |
| B: | Abt 1880 | 
| Iowa | |
| D: | Yes, date unknown | 
 -Yes, date unknown
| Clifford | |
| D: | Yes, date unknown | 
 -Yes, date unknown
| (Clifford) | |
| D: | Yes, date unknown |