1885–1918: The Sessional Division of Smalley, and the parishes of Breaston, Draycott and Wilne, Hopwell, Longeaton, Ockbrook, Risley, and Sawley and Wilsthorpe in the Sessional Division of Derby.[2]
1918–1950: The Municipal Borough of Ilkeston, the Urban Districts of Heanor and Ripley, and the Rural District which consisted of the parishes of Codnor Park and Shipley.[3]
1950–1983: The Municipal Borough of Ilkeston, the Urban Districts of Alfreton, Heanor, and Ripley, and in the Rural District of Belper the parish of Shipley.
Another General Election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected;
General Election 1939–40:
Another General Election was required to take place before the end of 1940. The political parties had been making preparations for an election to take place from 1939 and by the end of this year, the following candidates had been selected;
^"'Ilkeston', Feb 1974 - May 1983". ElectionWeb Project. Cognitive Computing Limited. Retrieved 23 March 2016.
^"Chap. 23. Redistribution of Seats Act, 1885". The Public General Acts of the United Kingdom passed in the forty-eighth and forty-ninth years of the reign of Queen Victoria. London: Eyre and Spottiswoode. 1885. pp. 111–198.
^Fraser, Hugh (1918). The Representation of the People Act, 1918: with explanatory notes. London: Sweet and Maxwell.