Born in Liverpool, Hargreaves worked as a railway clerk and was a member of the Railway Clerks' Association. He joined the Labour Party and was elected to Liverpool City Council in 1928, serving until 1950. In 1945, he was the President of Liverpool Trades Council and Labour Party. In 1949, he was appointed to the Mersey Docks and Harbour Board as a nominee of the Ministry of Transport.[1][2]
^ abStenton, Michael; Lees, Stephens (1981). Who's Who of British Members of Parliament: Volume IV, 1945–1979. Brighton: The Harvester Press. p. 153. ISBN0-85527-335-6.
^The Times House of Commons 1951. London: The Times Office. 1951. p. 54.