| Father | William Frederick Hahn (b. March 1860, d. 1936) |
| Mother | Agnes Mary Zifka (b. June 1861, d. 1955) |
| Birth | about 1904 | Joe G Hahn was born about 1904. |
| Witness | 1910 | Joe G Hahn appeared on the census of in 1910 in the household of William Frederick Hahn and Agnes Mary Zifka in Liberty Township, Grant, Wisconsin. |
| Last Edited | 29 March 2015 |