
| 1. | Joseph Hammecker was born in 1841; died in 1918. Family/Spouse: Mary Sophia Martin. Mary (daughter of Austin Martin and Sophia Fournier Furney) was born on 4 Apr 1858 in New Haven, Oswego, New York; died on 18 Nov 1942 in Parish, Oswego, New York. [Group Sheet] [Family Chart]
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| 2. | Frank Hammecker |
| 3. | Charles Hammecker |