“Additional music by Frank Leighton, Bert Leighton, Max Darewski and Julius Einodshofer”, vergleiche The Big Show in der Internet Broadway Database, abgerufen am 8. August 2024 (englisch)
jazzstandards.com
Vergleiche Jazz Standards Songs and Instrumentals – Poor Butterfly (jazzstandards.com): “Although a Japanese American actress/vocalist, Haru Onuki, introduced the song, she was replaced soon after the opening by soprano Sophie Bernard.”
Vergleiche Jazz Standards Songs and Instrumentals – Poor Butterfly (jazzstandards.com): “The song was so popular that over two million copies of the sheet music were sold, and it was played and sung by almost every musical artist of the day.”