Wood, Horatio C. (1895). American Medico-Surgical Bulletin. Vol.8. The Bulletin Publishing Company. p.306. Archived from the original on May 11, 2021. Retrieved August 29, 2013.
"Daniel Hale Williams: American physician". Daniel Hale Williams | Biography & Facts | Britannica. Encyclopedia Britannica. 2018. Archived from the original on July 20, 2019. Retrieved February 6, 2018.
Washington, Booker Taliaferro (1907). Harlan, Louis R. (ed.). The Booker T. Washington Papers. Vol.9: 19061908 (The Open Booked.). Urbana: University of Illinois Press. p.396. OCLC58644475. Archived from the original on October 20, 2007.
Baksaas ST, Solberg S (January 2003). "Verdens første hjerteoperasjon". Tidsskr Nor Lægeforen (in Norwegian). 123 (2): 202–204. Archived from the original on May 11, 2021. Retrieved December 26, 2020.
"Daniel Hale Williams: American physician". Daniel Hale Williams | Biography & Facts | Britannica. Encyclopedia Britannica. 2018. Archived from the original on July 20, 2019. Retrieved February 6, 2018.
Wood, Horatio C. (1895). American Medico-Surgical Bulletin. Vol.8. The Bulletin Publishing Company. p.306. Archived from the original on May 11, 2021. Retrieved August 29, 2013.
Washington, Booker Taliaferro (1907). Harlan, Louis R. (ed.). The Booker T. Washington Papers. Vol.9: 19061908 (The Open Booked.). Urbana: University of Illinois Press. p.396. OCLC58644475. Archived from the original on October 20, 2007.
Baksaas ST, Solberg S (January 2003). "Verdens første hjerteoperasjon". Tidsskr Nor Lægeforen (in Norwegian). 123 (2): 202–204. Archived from the original on May 11, 2021. Retrieved December 26, 2020.
Hendricks, Wanda A. (2013). Fannie Barrier Williams: Crossing the Borders of Region and Race. University of Illinois Press. ISBN978-0252095870. OCLC1067196558.
Washington, Booker Taliaferro (1907). Harlan, Louis R. (ed.). The Booker T. Washington Papers. Vol.9: 19061908 (The Open Booked.). Urbana: University of Illinois Press. p.396. OCLC58644475. Archived from the original on October 20, 2007.