Alex Lindsay Clark (born 24 July 1856) was a Scottish-born South African trade union leader and broadcaster.
Born in Carnoustie in Scotland, Clark was educated at the Free Church Grammar School.
[1] He emigrated to Durban in 1881, where he worked on the railways for many years.
He joined the Natal Railwaymen's Association, serving as its president in 1907/08, and then in 1918 was the founding president of the National Union of Railways and Harbour Services.
[2][3] Clark retired from the railways in the early 1920s, becoming president of the Workers' Educational Association, and becoming one of the first prominent speakers on the radio in South Africa.