| 1. William Drenning Drennan |
 |
| B: |
30 Nov 1762 |
| P: |
Cumberland Valley, Bedford, Pennsylvania, United States |
| D: |
3 Apr 1845 |
| P: |
Bedford Valley, Bedford, Pennsylvania, United States |
|
| 2. Samuel Drenning Drennan |
|
| B: |
Abt 1728 |
| P: |
County Antrim, Northern Ireland, United Kingdom |
| M: |
Abt 1762 |
| P: |
Bedford County, Pennsylvania, United States |
| D: |
13 Apr 1787 |
| P: |
Bedford County, Pennsylvania, United States |
|
| 4. William Drennon |
|
| B: |
1707 |
| P: |
County Antrim, Northern Ireland, United Kingdom |
| M: |
|
| P: |
|
| D: |
Bef 1770 |
| P: |
|
|
| 8. Samuel Drenning |
|
| B: |
Abt 1680 |
| P: |
County Antrim, Northern Ireland, United Kingdom |
| M: |
|
| P: |
|
| D: |
Yes, date unknown |
| P: |
|
|
1762 - 1845 (82 years)