Arthur Henderson PC was a British iron moulder and Labour politician. He was the first Labour cabinet minister, the 1934 Nobel Peace Prize Laureate and served three terms as the Leader of the Labour Party. He was popular among his colleagues, who called him "Uncle Arthur" in acknowledgement of his integrity, devotion to the cause and unperturbability. He was a transition figure whose policies were closer to the Liberal Party for the trades unions rejected his emphasis on arbitration and conciliation and thwarted his goal of unifying the Labour Party and the trades unions.