Eleanor Mildred Sidgwick

Eleanor Mildred Sidgwick (née Balfour; 11 March 1845 – 10 February 1936) was a physics researcher assisting Lord Rayleigh, an activist for the higher education of women, Principal of Newnham College of the University of Cambridge, and a leading figure in the Society for Psychical Research.

She was born into perhaps the most prominent political clan in 19th-century Britain, the 'Hotel Cecil': her brother Arthur would eventually himself become prime minister.

In 1890 Sidgwick was elected to the Ladies Dining Society that had been founded by Louise Creighton and Kathleen Lyttleton.

In 1886 and 1887 a series of publications by S. J. Davey, Richard Hodgson and Sidgwick in the Journal for the Society for Psychical Research exposed the slate writing tricks of the medium William Eglinton.

[6] Due to the critical papers, Stainton Moses and other prominent spiritualist members resigned from the Society for Psychical Research.