List of Famous people born on October 20th

Joseph C. Hickerson is a folk singer and songleader. A graduate of Oberlin College, for 35 years (1963–1998) he was Librarian and Director of the Archive of Folk Song at the American Folklife Center of the Library of Congress. Joe brought together the Ukrainian source and his own verses to create the basis for "Where Have All the Flowers Gone?" in collaboration with Pete Seeger,. He participated in the first LP recording of "Kumbayah". Along with Dave Guard, he is credited with the creation of the Kingston Trio's version of "Bonny Hielan Laddie". He is a lecturer, researcher, and performer, especially in New York State, Michigan, and the Chicago area. As of 2013 he is living in Portland, Oregon.

Adolph Deutsch was British-American composer, conductor and arranger.

John Karlsen, sometimes credited as Charles John Karlsen or John Karlson, was an actor from New Zealand who was active in cinema between 1958 and 2003. He is best known for Bill & Ted's Excellent Adventure (1989), The Black Stallion (1979) and The Sin Eater (2003). In Europe he appeared in mostly Italian films.

Kazimierz Jerzy Skrzypna-Twardowski was a Polish analytic philosopher, logician, and rector of the Lwów University. He was initially affiliated with Alexius Meinong's Graz School of object theory.