Photos of dead spirits

This dinosaur comic inspired me to research William H. Mumler, the spirit photographer. He took the photo on the left of Abraham Lincoln’s “ghost” standing over his widow. It’s a creepy concept, before everyone realised he was a fake it would have seemed very eerie. After looking at that I saw the photo on the right on Atlas Obscura’s blog about spiral staircases. The ghost on the left is a maid who fell down those spiral staircases to her death.

- On a side note there is a secret five storey spiral staircase at the university where my pa works and I loved going up and down it as a child. It starts on the bottom floor in an instrument room and leads up to the light tracks on the ceiling of the theatre, connecting his two office spaces in between. -

My knowledge of photography means I can’t accept these photos have actually captured images of spirits. However I’m not decided on the existence of such things. When I was much younger I had a couple of ghost experiences, one in a graveyard and one with my deceased cat. Perhaps they were real or perhaps it was just my over-active imagination. Has anyone else had supernatural experiences or photos?