Fox, Charles Donald; Silver, Milton L. Who's who on the Screen (dalam bahasa Inggris). Ross publishing Company. hlm. 214. Diakses tanggal January 12, 2021.
newspapers.com
"Tenor Featured". The Evening Sun. Maryland, Baltimore. March 20, 1929. hlm. 27. Diakses tanggal January 12, 2021 – via Newspapers.com.
"Radio Wins Singer". The Morning Call. Pennsylvania, Allentown. March 20, 1929. hlm. 25. Diakses tanggal January 12, 2021 – via Newspapers.com.