Life and career
Marcus was born in Kansas City, Missouri, the youngest of 13 children of a rabbi of Russian descent. She studied under Josef Lhévinne and Artur Schnabel. After winning the Walter W. Naumburg Foundation Award in 1928, she made a series of solo recital debuts in Chicago, San Francisco and New York City. Of her New York debut in 1929, the New York Times wrote: "Last night she displayed distinguished gifts both as a technician and an interpreter."
She was on faculty at the Juilliard School in New York City from 1954 to 1990 and provided master classes in piano performance at other conservatories including the American Conservatory of Music in Chicago during the 1970s in collaboration with William Browning, also a teacher of great repute.
Marcus's performances included a Carnegie Hall recital on January 25, 1949, in which she played Scarlatti, Brahms, Schubert, Schumann, Scriabin, Rachmaninoff, Stravinsky and Chopin. Her students included: Edward Aldwell, Agustin Anievas, Tzimon Barto, Jeffrey Biegel, Enrique Bátiz, David Brunell, Anthony Byrne, Sergio Calligaris, José Carlos Cocarelli, Cy Coleman, Stewart L. Gordon, Steven Graff, Horacio Gutiérrez, Stephen Hough, Byron Janis, Soonja Kim,Norman Krieger, Daniel Lessner, Panayis Lyras, Diana McIntosh, Beata Moon, Pascal Nemirovski, Ken Noda, Jon Kimura Parker, Peter Orth, Santiago Rodriguez, Neil Sedaka, Jeffrey Swann, Emma Tahmizian, Lev Weitzelski. Adele Marcus died on May 3, 1995 at her home in Manhattan, aged 89. In 2008, the Juillard School established the Adele Marcus Piano Scholarship in her honor. 
- Garrett, Charles Hiroshi (ed.) (2013). "Marcus, Adele". The New Grove Dictionary of American Music, 2nd edition. Oxford University Press. Retrieved 16 March 2017. Subscription required for full access
- Holland, Bernard (5 May 1995). Adele Marcus Is Dead at 89; Taught Many Notable Pianists, New York Times. Retrieved 16 March 2017
- New York Times (26 February 1929). "Debut by Adele Marcus; Young Pianist Displays Gifts as Technician and Interpreter", p. 30. Retrieved 16 March 2017. Subscription required for full access.
- Brand, Victoria Murray (May–August 2008). "New Scholarships Are Established at Juilliard". The Juilliard Journal. Retrieved 16 March 2017.
- Elder, Dean (May–June 1983). "Adele Marcus: World-Class Teacher", Clavier, Vol. 22, No. 5,
- Kehler, George (1982). "Marcus, Adele", pp. 804–805. The Piano in Concert. Scarecrow Press
- Adele Marcus: Grand Dame of the Golden Age of the Piano, curated by pianist Jeffrey Biegel, one of her former students.