1964 Devizes by-election

The by-election was held on the same day as three others with the Conservatives also defending seats in contests at Bury St Edmunds, Rutherglen and Winchester. On the day of the election, an article in The Glasgow Herald reported that both Labour and the Conservatives claimed to be confident of victory in Devizes. The same article speculated that whichever party won, their majority would likely not be much greater than 1,500 votes, and noted that "new hope would be put into many faint Conservative hearts" if the party held the seat.[2] The seat had gained around 4,000 new voters since the last general election, and according to the same report two thirds of these were thought likely to be Labour voters.[2]

The Labour MP Tony Benn, who campaigned in the constituency during the by-election partly as the Labour candidate was the son of his own agent, recorded in his diary on polling day that he had been told at lunch by his friend the psephologist David Butler, that Labour would "win Devizes quite comfortably". The following day he described in his diary the loss of the seat by 1,000 votes as "a real set-back" for Labour's hopes of victory in the forthcoming general election.[4]

The following morning, when the Bury St Edmunds result was still unknown, The Glasgow Herald contrasted the Devizes result with that in Rutherglen, which Labour had gained, and Winchester where there was an 8.5% swing to Labour despite the Conservatives retaining the seat. The report noted that holding Devizes Would "hearten" the Conservatives and expressed surprise that the swing to Labour was just 2.7%. However it also observed that Morrison had possibly benefited from being the only local candidate and having been supported by "a superb organisation".[5]