user: Question: What is First Member, when Election is "1871 by-election"?
Columns: ['Election', 'First member', '1st Party', 'Second member', '2nd Party']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1832', 'John Ivatt Briscoe', 'Liberal', 'Aubrey Beauclerk', 'Liberal']
SQL:

assistant: SELECT "First member" FROM "Table" WHERE "Election" = '1871 by-election';