Table:
text: Stockport (UK Parliament constituency)
MPs 1832–1950
MPs 1832–1950
Election _1st_Member _1st_Party _2nd_Member _2nd_Party
February 1893 George Whiteley Conservative Sir Joseph Leigh Liberal
1895 George Whiteley Conservative Beresford Valentine Melville Conservative
1900 George Whiteley Liberal Beresford Valentine Melville Conservative
1900 Sir Joseph Leigh Liberal Beresford Valentine Melville Conservative
1906 James Duckworth Liberal George Wardle Labour
January 1910 Spencer Leigh Hughes Liberal George Wardle Labour
1918 Spencer Leigh Hughes Coalition Liberal George Wardle Coalition Labour
1920 William Greenwood Coalition Conservative Henry Fildes Coalition Liberal
1922 William Greenwood Conservative Henry Fildes National Liberal
1923 William Greenwood Conservative Charles Royle Liberal
1924 William Greenwood Conservative Samuel Hammersley Conservative
1925 Arnold Townend Labour Samuel Hammersley Conservative
1931 Alan Dower Conservative Samuel Hammersley Conservative

Question: What is the second party when the first member of Stockport (UK Parliament constituency) is Alan Dower?