This is a list of all constituencies that were in existence at the 1950, 1951, 1955, 1959, 1964, 1966 and 1970 general elections, showing the winning party and broken down by region and county.
See https://commons.wikimedia.org/wiki/Category:Locator_maps_of_former_parliamentary_constituencies_of_England_1948 The separate administrative counties of Cambridgeshire and Isle of Ely were combined in 1965.
1The constituency was won by Philip Clarke of Sinn Féin, but he was unseated on petition on the basis that his criminal conviction (for Irish Republican Army activity) made him ineligible.
2The seat was originally won by Tom Mitchell of Sinn Féin, but Mitchell was subsequently unseated upon petition, on the grounds that his terrorist convictions made him ineligible to sit in Parliament.
However, Beattie in turn was also found ineligible to sit due to holding an office of profit under the crown, triggering a further by-election.