- Oct 16 Gaetano Capocci, Italian organist and composer (Responsori), born in Rome (d. 1898)
- Oct 17 Albertus van Raalte, Dutch-American Reformed vicar (settled Holland, Michigan), born in Wanneperveen, Netherlands (d. 1876)
- Oct 18 Hugh Thompson Reid, American Brigadier General (Union Army), born in Union City, Indiana (d. 1874)
Franz Liszt (1811-1886)
Oct 22 Hungarian romantic composer and virtuoso pianist (Faust Symphony), born in Raiding, Hungary
- Oct 24 Ferdinand Hiller, German pianist, composer and conductor, born in Frankfurt am Main, Germany (d. 1885)
- Oct 25 Évariste Galois, French mathematician (Group theory), born in Bourg-la-Reine, France (d. 1832)
- Oct 27 Isaac Singer, American inventor (1st practical home sewing machine), born in Pittstown New York (d. 1875)
- Oct 27 Stevens T. Mason, American politician (1st Governor of Michigan. 1835-40), born in Leesburg, Virginia (d. 1843)