John Cleves Symmes
For his nephew, who believed in a hollow Earth, see John Cleves Symmes, Jr.John Cleves Symmes (July 21, 1742 – February 26, 1814) was a delegate to the Continental Congress from New Jersey, and later a pioneer in the Northwest Territory. He was also the father-in-law of President William Henry Harrison (and therefore the great-grandfather of President Benjamin Harrison).
Personal facts
| Birth date | January 01, 1741 |
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| Date of death | February 26, 1814 |
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