1832–1885: The Liberty of Peterborough, and the Hundreds of Willybrook, Polebrook, Huxloe, Navisford, Corby, Higham Ferrers, Rothwell, Hamfordshoe and Orlingbury.
[1] 1885–1918: The Sessional Divisions of Oundle and Thrapstone, part of the Sessional Division of Kettering (with the exceptions below), the Liberty of the Soke of Peterborough, and the part of the Municipal Borough of Stamford in the county of Northamptonshire.
(The part of the Sessional Division of Kettering included in North Northamptonshire excluded the parishes of Broughton, Cransley, Kettering and Pytchley, which were assigned to East Northamptonshire, and also excluded the parishes of Draughton, Faxton, Glendon, Harrington, Loddington, Mawsley, Orton, Rothwell and Thorpe Malsor, which were assigned to Mid Northamptonshire).
From 1832 until 1885, the constituency returned two Members of Parliament elected by the bloc vote system.
The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected;