Etta Wriedt

Etta Wriedt (1862–1942) was an American direct voice medium.

Wriedt was born in Oswego, New York and was well known in the field of spiritualism, she employed a trumpet in the darkness of the séance room which she claimed spirits would use to make noises and voices. She charged people money to attend her séances, one of her spirit guides was "John Sharp" who claimed he was born in Glasgow, Scotland, in the eighteenth century. She visited England five times and held séances with W. T. Stead. Stead and Vice-Admiral William Usborne Moore author of the book, The Voices (1913) endorsed her mediumship as genuine.

Fraud

W. B. Yeats who attended séances found them interesting but was skeptical and expressed doubts about the voices. This led to his dismissal from Wriedt's séances.

Wriedt was exposed as a fraud by the physicist Kristian Birkeland when he discovered the noises produced by her trumpet were caused by chemical explosions induced by potassium and water and in other cases by lycopodium powder. Joseph McCabe wrote:

McCabe also wrote that the "spirit" voices heard in the séance were Wriedt herself and were performed by a hidden telescopic aluminium tube.