1939 Colne Valley by-election

Ernest Marklew, who had been a Councillor in Grimsby, was first elected as MP for Colne Valley in 1935 when he gained the seat from the Liberal party.

The Labour party selected 52-year-old Glenvil Hall to defend the seat.

The Liberal party selected 34-year-old Lance Mallalieu to fight the seat.

He had been the MP for the seat from 1931 until defeated by Marklew at the last General Election in 1935.

Hall continued as MP for Colne Valley until his death in 1962.