Image Credits:

1. Aerial view of the caldera of Mt Tambora at the island of Sumbawa, Indonesia. Courtesy of Jialiang Gao via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Caldera_Mt_Tambora_Sumbawa_Indonesia.jpg
2. Mary Wollstonecraft Shelley by Richard Rothwell. Courtesy of the National Portrait Gallery via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Mary_Wollstonecraft_Shelley_Rothwell.tif 
3. Mary Shelley's tomb in Bournemouth. Courtesy of user LordHarris via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Wollstonecraft_Shelley_Grave_1.jpg 
4. Mary Shelley's Signature. Courtesy of unknown via Wikimedia Commons, public domain. https://commons.wikimedia.org/wiki/File:Mary_Shelley_Signature.png
5. Villa Diodati in Geneva, Switzerland, 2008. Courtesy of Robert Grassi via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Villa_diodati_2008.07.27_rg_5.JPG 
6. Percy Blysshe Shelley's Frankenstein handwriting edits. Bodleian Library, University of Oxford, UK via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Percy_Bysshe_Shelley_Frankenstein_Handwriting_Edits.jpg
7. Percy Blysshe Shelley by Alfred Clint. National Portrait Gallery via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Percy_Bysshe_Shelley_by_Alfred_Clint.jpg 

Other Sources

1. Shelley, Mary Wollstonecraft. Frankenstein, or, the Modern Prometheus (1831 edition). Unknown: Project Gutenberg, n.d. https://www.gutenberg.org/files/42324/42324-h/42324-h.htm

2. Hay, Daisy. The Making of Mary Shelley’s Frankenstein. Oxford: Bodleian Library, 2018.