Alexander or Alex Campbell may refer to: Wikipedia
Alexander Campbell (1779November 5, 1857) was a National Republican politician from Ohio. He served in the United States Senate. Wikipedia
Alexander Campbell (12 September 1788 – 4 March 1866) was an Ulster-Scots immigrant who became an ordained minister in the United States and joined his father Thomas Campbell as a leader of a reform effort that is historically known as the Restoration Movement, and by some as the "Stone-Campbell Movement." It resulted in the development of non-denominational Christian churches, which stressed reliance on scripture and few essentials. Wikipedia
Sir Alexander Campbell (March 9, 1822 – May 24, 1892) was an Upper Canadian statesman and a father of Canadian Confederation. Wikipedia