Birthdays in History in May 1821

  • May 2 Abram Sanders Piatt, Brigadier General (Union volunteers), (d. 1908)
  • May 8 William Henry Vanderbilt, member of the Vanderbilt family (d. 1885)
  • May 11 [Carlos] Charles John Stolbrand, Brigadier General (Union volunteers)
  • May 16 Pafnuty Chebyshev, Russian mathematician (d. 1894)
  • May 17 Sebastian Kneipp, German naturopathist (d. 1897)
  • May 21 John F Loudon, Dutch entrepreneur/colonial director
  • May 22 Alfred Sully, Bvt Major General (Union volunteers), (d. 1879)