Harold Ewart Clay (1886 – September 1961) was a British trade union leader, also known for his political and educational activities.
[1] He became active in the Social Democratic Federation, then its successor, the British Socialist Party, and was a keen advocate of the BSP's affiliation to the Labour Party, serving as president of the Leeds Labour Representation Council in 1913/14.
In 1914, he founded the Leeds Tenants Defence League,[2] which led an unsuccessful rent strike in support of the construction of municipal housing.
[3] Clay was prominent in the United Vehicle Workers union, presiding over its conference in 1913.
A supporter of the Workers' Educational Association (WEA), he was appointed as a vice president in 1928.