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| Name | Joseph IRWIN | |
| Title | Dr. | |
| Gender | Male | |
| Person ID | I2516 | Zentmeyer Main Tree | 
| Last Modified | 3 Apr 2017 | |
| Family | Matilda BERRYHILL,   b. 26 Apr 1787, Harrisburg, Dauphin, Pennsylvania  d. 26 Dec 1856, Philadelphia, Philadelphia, Pennsylvania  (Age 69 years) | |
| Family ID | F1073 | Group Sheet | Family Chart | 
| Last Modified | 3 Apr 2017 | |