found: OCLC 6776155: Lil Hardin Armstrong and her orchestra, 1961(hdg.: Armstrong, Lil Hardin)
found: OCLC database, 10/27/93(hdgs.: Armstrong, Lil Hardin, 1902-1971; Armstrong, Lil Hardin; Armstrong, Lil; usage: Lil Hardin Armstrong; Lil Armstrong)
found: LC database, 10/27/93(MLC hdg.: Armstrong, Lil; usage: Lil Hardin Armstrong)
found: King Oliver's Creole Jazz Band. King Oliver's Creole Jazz Band [SR] p1996:insert (Lillian Hardin, piano)
found: New Grove dict. of jazz(Armstrong (née Hardin), Lil(lian); b. Feb. 3, 1898, Memphis, d. Aug. 27, 1971, Chicago; pianist, singer, composer)
found: Feather, L. Biog. ency. of jazz, 1999(Armstrong, Lil (Lillian Hardin); b. Feb. 3, 1898, Memphis, Tenn., d. Aug. 27, 1971, Chicago, Ill.; piano, composer, vocals)
found: Black Women in America, Second Edition, accessed November 21, 2014, via Oxford African American Studies Center database:(Armstrong, Lillian "Lil" Hardin; Lillian Beatrice Hardin; songwriter, jazz musician, jazz singer, pianist; born 03 February 1898 in Memphis, Tennessee, United States; joined Sugar Johnny's Creole Orchestra; joined King Oliver's Creole Jazz Band as the pianist and arranger (1921); married Armstrong (1924); member of the Red Onion Jazz Babies; made a record under the name the New Orleans Wanderers (1926); graduated with a teachers certificate from the Chicago College of Music (1928); received a postgraduate degree from the New York College of Music (1929); appeared on recordings with Johnny Dodds, and was the pianist and bandleader for the Hot Shots; formed Lil Armstrong and Her Swing Orchestra (1936); appeared at Metro Jazz in Paris and performed with the band in the short film Sous-sol (1952-1953); appeared on the album Chicago-The Living Legends, produced by Riverside Records (1961); died 27 August 1971 in Chicago, Illinois, United States)