The 1956 Gainsborough by-election was held on 14 February 1956. It was held due to the elevation of the incumbent Conservative MP, Harry Crookshank to a hereditary peerage. It was won by the Conservative candidate Marcus Kimball. The Liberals polled over 20% of the vote, having not fielded a candidate in 1955. After the by-election Kimball was Baby of the House.
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Marcus Kimball | 12,836 | 40.8 | −15.0 | |
| Labour | Henry Walston | 11,830 | 37.6 | −6.6 | |
| Liberal | Henry Ivan Spence | 6,806 | 21.6 | New | |
| Majority | 1,006 | 3.2 | −8.4 | ||
| Turnout | 31,472 | ||||
| Conservative hold | Swing | ||||
   | This article about a by-election to the Parliament of the United Kingdom in the East of England is a stub. You can help Wikipedia by expanding it. |