user: Question: Which Representative had a Lifespan of 1795–1866?
Columns: ['Representative', 'Years', 'State', 'Party', 'Lifespan']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Mark Udall', '1999–2009', 'Colorado', 'Democratic', '1950–']
SQL:

assistant: SELECT "Representative" FROM "Table" WHERE "Lifespan" = '1795–1866';