Sister Mary of Jesus
https://en.wikipedia.org/wiki/Mary_of_Jesus_of_%C3%81greda

Johann Wolfgang von Goethe
https://www.thoughtco.com/true-stories-of-doppelgangers-2593448
https://en.wikipedia.org/wiki/Johann_Wolfgang_von_Goethe

Emilie Sagee
https://aminoapps.com/c/paranormal/page/blog/the-strange-case-of-emilie-sagee/xpRo_ElzH2uwPxxed7W2qL0z62vDqY7lom0
https://planetinside.co.uk/paranormal/emilie-sagee-ghostly-twin/

Guy de Maupassant
https://thegadabouttown.com/2016/08/17/the-ghostly-writer/
https://en.wikipedia.org/wiki/Guy_de_Maupassant

John Donne
https://frankzumbach.wordpress.com/2014/01/30/doppelganger-a-vision-of-john-donne-1612-via-wikipedia/

Percy Shelley
http://www.martianherald.com/9-mystifying-cases-doppelganger-phenomenon/page/3
https://en.wikipedia.org/wiki/Percy_Bysshe_Shelley

Sir Frederick Carne Rasch
https://allaboutheaven.org/observations/23589/221/rasch-sir-frederick-carne-in-two-places-at-the-same-time-025788
https://en.wikipedia.org/wiki/Carne_Rasch

The Bed Doppelganger
http://www.bbc.com/future/story/20150821-the-dangerous-consequences-of-seeing-your-doppelganger

Bridget Cleary
https://en.wikipedia.org/wiki/Bridget_Cleary

The Fregoli Delusion
https://en.wikipedia.org/wiki/Fregoli_delusion
https://www.telegraph.co.uk/film/anomalisa/what-is-fregoli-delusion-charlie-kaufman/
https://www.pressreader.com/uk/fortean-times/20170401/283003989645324