20 January 1831 : Pieter J Joubert: General (South Africa)
20 January 1820 : Anne Jemima Clough: England, United Kingdom -- Promoted higher education for women
20 January 1813 : Jacon Gartner Lauman: Bvt Major General (Union volunteers), died in 1867
20 January 1812 : Ralph Pomeroy Buckland: Bvt Major General (Union volunteers), died in 1892
20 January 1809 : Sebastian de Iradier: Spanish composer (La Paloma)
20 January 1806 : Nathaniel Willis: Writer / editor / founder (American Monthly Magazine)
20 January 1782 : Johan B J F S: Archduke of Austria
20 January 1762 : Jerome-Joseph de Momigny: Composer
20 January 1761 : Giovanni Domenico Perotti: Composer
20 January 1743 : Pascal Boyer: Composer
20 January 1732 : Richard H Lee: US farmer (signed Declaration of Independence)
20 January 1716 : Carlos III: King of Naples / Spain (1759-88) Pompei / Jesuits
20 January 1703 : Joseph-Hector Fiocco: Composer
20 January 1681 : Francesco Bartolomeo Conti: Composer
20 January 1654 : Michiel de Swaen: Netherlands -- Physician / poet