- Oct 1 Johnny Meijer, Dutch accordionist known as the "King of Accordions" (Body & Soul), born in Amsterdam, The Netherlands (d. 1992)
- Oct 2 Eric Charles Twelves Wilson, English British Army officer (awarded Victoria Cross), born in Sandown, Isle of Wight, England (d. 2008)
- Oct 3 Gabriel Julian, American pianist (Bobby Byrne Orchestra), arranger (Glenn Miller), and band leader (Alabama Cavaliers Jazz Ensemble), born in Newark, New Jersey (d. 2002)
- Oct 4 Alfonso Letelier (-Llona), Chilean composer and educator (El Hombre ante la Ciencia - (Man Before Science)), born in Santiago, Chile (d. 1994)
- Oct 4 John de Mol, Dutch accordianist/producer (Baantjer, Pril Geluk)
- Oct 5 Fritz Fischer, German physician and Nazi war criminal, born in Berlin (d. 2003)
- Oct 6 Anthony Cuthbert Baines, English music scholar (d. 1997)
- Oct 6 Joop Zwart, Dutch political activist and resistance fighter, born in Amsterdam, Netherlands (d. 1991)
- Oct 7 Fernando Belaúnde Terry, President of Peru (d. 2002)
- Oct 9 Henri Dillon, French composer (Arlequin), born in Angers, France (d. 1954)
- Oct 10 Charles Henry Madge, English poet and founder of Mass-Observation, born in Johannesburg, South Africa (d. 1996)
- Oct 13 Cornel Wilde [Kornel Lajos Weisz], Hungarian-American actor (Sword of Lancelot, High Sierra, 5th Musketeer), born in Prievidza, Hungary (d. 1989)
- Oct 13 Hugo Weisgall, American composer (4 Impressions), born in Ivančice, Czech Republic (d. 1997)
- Oct 13 Jan Peeters, Dutch watercolor painter, stained glass, tile, and monument artist, born in Amsterdam (d. 1992)
- Oct 14 Helmut Schelsky, German sociologist (Sociology of Sex), born in Chemnitz, Saxony (d. 1984)
- Oct 14 Jack Crapp, English cricketer (England batsman 1948-49), born in St Columb Major, Cornwall, England (d. 1981)
- Oct 14 Jack Young, English cricketer (Middlesex & England slow left-armer post-WW2), born in Paddington, London (d. 1993)
- Oct 15 Nellie Lutcher, American jazz and R&B singer, pianist, and songwriter ("Hurry On Down"; "He's a Real Gone Guy"), born in Lake Charles, Louisiana (d. 2007)
- Oct 17 John Paul I [Albino Luciano], 263rd Roman Catholic pope (1978), born in Canale d'Agordo, Belluno, Veneto, Italy (d. 1978)
- Oct 21 (Carlos) "Don" Byas, American swing and be-bop jazz saxophonist, and bandleader, born in Muskogee, Oklahoma (d. 1972)
- Oct 21 Sir Georg Solti [György Stern], Hungarian-British conductor, winner of 31 Grammy awards (Chicago Symphony, 1969-91), born in Budapest, Hungary (d. 1997)
- Oct 22 Frances Drake [Dean], American actress (Mad Love, The Invisible Ray), born in NYC, New York (d. 2000)
- Oct 25 Jack Kent Cooke, Canadian entrepreneur, NFL team owner (Washington Redskins), born in Hamilton, Canada (d. 1997)
- Oct 25 Minnie Pearl [Sarah Ophelia Colley], American country comedienne (Grand Old Opry, Hee-Haw), born in Centerville, Tennessee (d. 1996)
- Oct 26 Don Siegel, American film director (Escape from Alcatraz, Shootist), born in Chicago, Illinois (d. 1991)
- Oct 27 Conlon Nancarrow, American-Mexican composer, often of player piano music (Soundings 4), born in Texarkana, Arkansas (d. 1997)
- Oct 27 Gösta Törner, Swedish hot jazz and session trumpeter and bandleader, born in Stockholm, Sweden (d. 1982)
- Oct 28 Richard Doll, English epidemiologist (pioneer in research linking smoking to health problems), born in Hampton, Middlesex, England (d. 2005)
- Oct 30 Preston Lockwood [Reginald], British actor (Time Bandits, Jeeves and Wooster), born in West Ham, Essex (d. 1996)
- Oct 31 Dale Evans, American actress and singer (Roy Rogers Show), born in Uvalde, Texas (d. 2001)
- Oct 31 Ollie Johnston, American animator and the last living member of Disney's Nine Old Men, born in Palo Alto, California (d. 2008)
About October 1912
How Old? 110 years old
Generation: Greatest Generation
Leap Year: Yes