“A Haunting Story…The Legend Of Violin Annie.” Steve Huff Photo. February 2, 2010. https://www.stevehuffphoto.com/2010/02/02/a-haunting-story-the-legend-of-violin-annie
“Elmwood Cemetery and Violin Annie.” M.A. Kleen. October 16, 2018. https://michaelkleen.com/2018/10/16/elmwood-cemetery-and-violin-annie
“H. Annie Marshall.” Find a Grave. Accessed November 7, 2022. https://www.findagrave.com/memorial/8048539/h_-annie-marshall
“Strange Tales of Haunted Violins.” Mysterious Universe. July 18, 2019. https://mysteriousuniverse.org/2019/07/strange-tales-of-haunted-violins
“Violin Annie - Elmwood Cemetery - Real Haunted Place.” Haunted Illinois Houses. https://www.illinoishauntedhouses.com/real-haunt/violin-annie--elmwood-cemetery.html#:~:text=Local%20stories%20say%20that%20Harriet,the%20violin%20at%20her%20grave
“BILLIE HOLIDAY AND THE "GLOOMY SUNDAY" CURSE.” American Hauntings. Accessed November 12, 2022. https://www.americanhauntingsink.com/gloomysunday
“Gloomy Sunday Suicides.” Snopes. January 11, 2010. https://www.snopes.com/fact-check/gloomy-sunday
“This Song's a Killer: The Strange Tale of "Gloomy Sunday." Mental Floss. August 16, 2011. https://www.mentalfloss.com/article/28525/songs-killer-strange-tale-gloomy-sunday
“Ben Franklin’s Killer Instrument: the Glass Armonica.” Ripley’s. August 12, 2021. https://www.ripleys.com/weird-news/ben-franklins-killer-instrument-the-glass-armonica
“Benjamin Franklin and the Glass Armonica.” Benjamin Franklin House. Accessed November 15, 2022. https://benjaminfranklinhouse.org/benjamin-franklin-and-the-glass-armonica
“Benjamin Franklin’s Cursed Glass Harmonica.” Mysterious Universe. March 22, 2018. https://mysteriousuniverse.org/2018/03/benjamin-franklins-cursed-glass-harmonica
“Benjamin Franklin’s Glass Armonica.” The Franklin Institute. Accessed November 15, 2022. https://www.fi.edu/history-resources/franklins-glass-armonica
“Rise and Fall of Benjamin Franklin’s Glass Armonica.” New York Almanack. September 7, 2021. https://www.newyorkalmanack.com/2021/09/rise-and-fall-of-benjamin-franklins-glass-armonica
“Missing artifacts from the Egyptian Museum retrieved.” Ahram Online. April 12, 2011. https://english.ahram.org.eg/NewsContentPrint/9/0/9871/Heritage/0/Missing-artifacts-from-the-Egyptian-Museum-retriev.aspx
Montagu, Jeremy. “One of Tut'ankhamūn's Trumpets.” The Journal of Egyptian Archaeology. Vol. 64 (1978), pp. 133-134.
“Recreating the sound of Tutankhamun's trumpets.” BBC. April 18, 2011. https://www.bbc.com/news/world-middle-east-13092827
“The Curse of Tut’s Trumpets.” Museum of World Treasures. December 4, 2021. https://worldtreasures.org/blog/the-curse-of-tuts-trumpets
“Tutankhamun’s ‘cursed’ trumpet that stirs ‘deadly conflict’ has arrived in London.” Classic FM. November 6, 2019. https://www.classicfm.com/discover-music/king-tutankhamun-trumpet-oldest-in-existence
" Marianne Kirchgessner (June 5, 1769 — December 9, 1808) | World Biographical Encyclopedia," prabook.com, Date Unknown, https://prabook.com/web/marianne.kirchgessner/2266216
"Music, By Victor Hugo - 1135 Words | Bartleby," www.bartleby.com, Date Unknown, https://www.bartleby.com/essay/Music-By-Victor-Hugo-FKT7F3MYAEFP