The Glasgow Kelvingrove by-election of 13 March 1958 was held after the death of Conservative MP (MP) Walter Elliot.
The seat was marginal, having been won by the Conservatives at the United Kingdom general election, 1955 by just short of 3,000 votes. Elliot's widow Katharine Elliot stood to replace her husband as a Unionist, but she was defeated by Labour's Mary McAlister.
References
Glasgow Kelvingrove by-election, 1958 Wikipedia(Text) CC BY-SA