Dr Florence Barrett (1867-1945) was a prominent gynaecologist and obstetrician, as well as dean of the London School of Medicine for Women.
William F. Barrett (1844-1925) was a British physicist and a leading figure in the early years of psychical research, investigating telepathy and clairvoyance, apparitions, mediumship, dowsing, deathbed visions of deceased persons, and related topics. Barrett co-founded the Society for Psychical Research and the American Society for Psychical Research. Source: psi-encyclopedia.spr.ac.uk