Analysis of information sources in references of the Wikipedia article "Shave and a Haircut" in English language version.
The Book of World-Famous Music, a 1966 work by James J. Fuld, which reveals a 1939 ditty, 'Shave and a Haircut—Shampoo', by Dan Shapiro, Lester Lee and Milton Berle, and a similar number in the same year, 'Shave and a Haircut, Bay Rum', recorded as a folk melody by Rosalind Rosenthal and Herbert Halpert.