Henry Wilson (February 16, 1812 – November 22, 1875) was a Senator from Massachusetts and the eighteenth Vice President of the United States. He was a leading Republican who devoted his enormous energies to the destruction of what he considered the slavocracy, that is the conspiracy of slave owners to seize control of the federal government and block the progress of liberty.
Benson John Lossing, ed. Harper's Encyclopedia of United States History (vol. 10) (New York, NY: Harper and Brothers, 1912)