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Biography
Lauchlan MacNeill Weir (1877–18 August 1939) was a Scottish Labour politician.
He was the son of Robert Weir and was educated at the University of Glasgow. He worked as a journalist and first stood for parliament in Argyllshire in 1918, but was easily beaten by the Coalition Liberal.
He was elected MP for Clackmannan and Eastern Stirlingshire in the general election of 1922, lost it in the National Government landslide of 1931, but won it back in 1935, and held it until his death.
MacNeill Weir was appointed Parliamentary Private Secretary to the first Labour Prime Minister Ramsay MacDonald in 1924 and wrote a controversial book entitled The Tragedy of Ramsay MacDonald: A Political Biography published in 1938.
He married Margaret Gillison in 1913. There were no children.